Measuring for our blinds is easy!

These basic tips will get you perfect measurments for window treatments! See category sections below for more details. How To Measure for Inside and Outside Mount Window Treatments

Inside Mount:

1. Make sure that your window has enough depth to accommodate the product you have chosen. Refer to the "Mounting Requirements" section for the product you have chosen. If your window does not have the required depth, choose another product, or an outside mount.
2. Provide the exact window opening size. Take NO deductions. The factory will ensure that your product will fit snugly in the window, and will operate properly. Please note that inside mounted roller shades will have a vertical light gap between the shade and the window frame of approximately 3/4" on either side to accommodate the operating mechanisms.
Width: For Roller Shades, Vertical Blinds and Sheer Shades, record the width at the top of the window only. For all other blinds and shades, record top, middle and bottom measurements, using the narrowest measurement.
Height: Measure the height in 3 places; left, center and right. Use the shortest measurement for Sheer Shades and Vertical Blinds. For all other blinds and shades, use the longest measurement.

Outside Mount:

1. Specify the exact width and height you want your product. Your product will be made to the exact size you specify.
2. You should include additional height for the mounting brackets, which are up to 2 1/2" tall.
3. Add extra width on the sides, top and bottom for more privacy and light blockage.
4. Be aware of obstructions like molding, doorknobs and deadbolts that might get in the way of your blind. Some blinds are available with spacer blocks or extension brackets to help clear these obstructions.

Wood blinds are horizontal blinds made from real wood, while faux wood blinds are made from synthetic material that have the look of real wood blinds for less. Aluminum blinds, also called mini blinds, are the standard horizontal blinds that are most common in windows.
  • Measuring Inside Mount for Faux Wood Blinds

    Featured Product

    2" Faux Wood Blinds

    2 Inch Fauxwood Blinds
    • A more durable alternative to real wood blinds
    • Available in an array of colors and stains
    SHOP NOW

    1" Customiser Mini Blinds

    1 Inch Customiser Mini Blinds
    • All the benefits of custom-made mini blinds, but at an incredible price
    • Available in a wide assortment of popular designer colors
    SHOP NOW

    Measuring - Inside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an inside mount:

    Measuring Inside Mount for Faux Wood Blinds

    Measure the opening width at the top, center and bottom, recording the narrowest width. Always measure to the nearest 1/8", and be sure to use a steel tape measure. See tip below.

    Measure the height left, right and center, recording the tallest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. They will deduct between 1/16" and 3/8" from the width on each side. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly out of square, you might want to consider an Outside Mount to hide the window.

    Request a Professional Installation Service

  • Measuring Outside Mount for Faux Wood Blinds

    Featured Product

    2" Faux Wood Blinds

    2 Inch Fauxwood Blinds
    • A more durable alternative to real wood blinds
    • Available in an array of colors and stains
    SHOP NOW

    1" Customiser Mini Blinds

    1 Inch Customiser Mini Blinds
    • All the benefits of custom-made mini blinds, but at an incredible price
    • Available in a wide assortment of popular designer colors
    SHOP NOW

    Measuring - Outside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - Add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an outside mount:

    Measuring Outside Mount for Faux Wood Blinds

    Measure the opening width. If there is room, add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Measure the opening height. Add a minimum of 2 1/2" in height (3" for 2" horizontal blinds) to allow space for mounting brackets above the opening plus enough overlap for the bottom. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Request a Professional Installation Service

Cellular shades, also called honeycomb shades, are fabric shades that are effective insulators, while pleated shades are soft, fabric shades that provide good value and convenient operation. Roman shades give the look of custom drapes at an affordable price. Woven wood shades, also called bamboo shades, are often made from natural materials and provide a warm, inviting look.
  • Measuring Inside Mount for Shades

    Featured Product

    3/8" Double Cell Light Filtering

    Double Cell Light Filtering Cell Shades
    • Filters natural light while providing privacy
    • Comes in a variety of colors
    SHOP NOW

    Accordia Light Filtering Cellular Shades

    Levolor PVC Verticals
    • Available in single and double cell constructions
    • Comes in a beautiful array of colors
    SHOP NOW

    Measuring - Inside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an inside mount:

    Measuring Inside Mount for Shades

    Measure the opening width at the top, center and bottom, recording the narrowest width. Always measure to the nearest 1/8", and be sure to use a steel tape measure. See tip below.

    Measure the height left, right and center, recording the tallest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. They will deduct between 1/16" and 3/8" from the width on each side. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Request a Professional Installation Service

  • Measuring Outside Mount for Shades

    Featured Product

    3/8" Double Cell Light Filtering

    Double Cell Light Filtering Cell Shades
    • Filters natural light while providing privacy
    • Comes in a variety of colors
    SHOP NOW

    Accordia Light Filtering Cellular Shades

    Levolor PVC Verticals
    • Available in single and double cell constructions
    • Comes in a beautiful array of colors
    SHOP NOW

    Measuring - Outside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - Add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an outside mount:

    Measuring Outside Mount for Shades

    Measure the opening width. If there is room, add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Measure the opening height. Add a minimum of 2 1/2" in height (3" for 2" horizontal blinds) to allow space for mounting brackets above the opening plus enough overlap for the bottom. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly out of square, you might want to consider an Outside Mount to hide the window.

    Request a Professional Installation Service

  • Measuring Inside Mount for Vertical Blinds

    Featured Product

    Fabric Verticals

    Fabric Verticals
    • A practical alternative to drapes
    • Slats offer light control
    SHOP NOW

    Levolor PVC Verticals

    Levolor PVC Verticals
    • Great for patio doors
    • Available in a wide variety of patterns and colors
    SHOP NOW

    Vertical Blind Measuring - Inside Mount

    • Use a steel measuring tape and measure down to the nearest 1/8".
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Be Confident: Inside or Outside Mount-Which To Choose?

    • Decide which you want BEFORE you take any measurements.
    • We usually recommend an inside mount because it provides a cleaner look.
    • However, an outside mount can make a window look larger or hide an unattractive window.
    • If you want an inside mount, make sure the window opening has enough unobstructed depth to allow for mounting.
    • If you want an outside mount, be sure to allow for the height of the product's headrail in your measurement.

    Always remember: we will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    Measuring for INSIDE MOUNT:

    Measure the width top, center and bottom, recording the narrowest width. Measure the height left, right and center recording the shortest height. When you specify inside mount, we will make your blind slightly smaller than specified to allow for operating clearance. We will deduct between 1/16" to 3/8" from the width on each side, and 1/4" to 1/2" from the height. For a flush inside mount (the blind completely recessed so the top of the blind does not project out of the opening) check that you have enough depth.

    Request a Professional Installation Service

  • Measuring Outside Mount for Vertical Blinds

    Featured Product

    Fabric Verticals

    Fabric Verticals
    • A practical alternative to drapes
    • Slats offer light control
    SHOP NOW

    Levolor PVC Verticals

    Levolor PVC Verticals
    • Great for patio doors
    • Available in a wide variety of patterns and colors
    SHOP NOW

    Measuring - Outside Mount

    Vertical Blind Measuring - Outside Mount

    • Use a steel measuring tape and measure down to the nearest 1/8".
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - Add at least 4" on each side of the window opening to ensure minimum light gap.

    Be Confident: Inside or Outside Mount-Which To Choose?

    • Decide which you want BEFORE you take any measurements.
    • We usually recommend an inside mount because it provides a cleaner look.
    • However, an outside mount can make a window look larger or hide an unattractive window.
    • If you want an inside mount, make sure the window opening has enough unobstructed depth to allow for mounting.
    • If you want an outside mount, be sure to allow for the height of the product's headrail in your measurement.

    Always remember: we will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    Measuring for OUTSIDE MOUNT:

    Measuring Outside Mount for Vertical Blinds

    Measure the opening width. If there is room, add at least 4" on each side of the window opening to ensure minimum light gap. Measure the opening height. Add a minimum of 2 1/2" in height to allow for mounting brackets above the opening and add your desired overlap for the bottom. If your window treatment will hang down to the floor, please allow at least 1/2" clearance on the bottom for proper operation. If you specify an outside mount, we will not take any size deductions - your blind will be made at the exact size you specify.

    Request a Professional Installation Service
Roller and solar shades are stylish fabric shades that can easily be lowered or raised by hand.
  • Measuring Inside Mount for Roller and Solar Shades

    Featured Product

    Signature Solar Shades

    Signature Solar Shades
    • Comes in a variety of colors and patterns
    • Filters light and harmful UV rays
    SHOP NOW

    Bali Solar Shade

    Levolor PVC Verticals
    • A perfect choice for their functionality, energy efficiency, and style
    • Reduces glare and damaging UV rays and keep your rooms cool and comfortable
    SHOP NOW

    Measuring - Inside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an inside mount:

    Measuring Inside Mount for Roller and Solar Shades

    Measure the opening width at the top, center and bottom, recording the narrowest width. Always measure to the nearest 1/8", and be sure to use a steel tape measure. See tip below.

    Measure the height left, right and center, recording the tallest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. They will deduct approximately 1/2" on each side of the material only. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Request a Professional Installation Service

  • Measuring Outside Mount for Roller and Solar Shades

    Featured Product

    Signature Solar Shades

    Signature Solar Shades
    • Comes in a variety of colors and patterns
    • Filters light and harmful UV rays
    SHOP NOW

    Bali Solar Shade

    Levolor PVC Verticals
    • A perfect choice for their functionality, energy efficiency, and style
    • Reduces glare and damaging UV rays and keep your rooms cool and comfortable
    SHOP NOW

    Measuring - Outside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - Add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an outside mount:

    Measuring Outside Mount for Roller and Solar Shades

    Measure the opening width. If there is room, add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Measure the opening height. Add a minimum of 2 1/2" in height (3" for 2" horizontal blinds) to allow space for mounting brackets above the opening plus enough overlap for the bottom. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly out of square, you might want to consider an Outside Mount to hide the window.

    Request a Professional Installation Service

Plantation shutters are classic window treatments that cover your window with wood or faux wood panels. These window treatments add long-lasting value and help insulate your window.
  • Measuring Inside Mount for Plantation Shutters

    Featured Product

    Norman Woodlore Plantation Shutter

    Norman Woodlore Plantation Shutter
    • Durable Premium faux wood shutter
    • Available in 3 colors
    SHOP NOW

    Simplicity Wood Shutter

    Simplicity Wood Shutter
    • Available in a variety of colors and stains
    • Almost entirely assembled right out of the box
    SHOP NOW

    BE PRECISE

    Always measure with a steel tape. Never use a cloth tape. Measure sizes to the nearest eighth of an inch (1/8"). don't be surprised if your windows are not perfectly square. Most aren't. You probably won't notice.

    On your notes clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Try to always measure the width first, then height.

    All shutters come with frames for easy mounting.

    Louver Sizes
    We have four louver sizes available 1 7/8", 2 1/2", 3 1/2" & 4 1/2". For a more contempory look or for less view obstruction choose a larger louver size. For a more traditional design you should choose a smaller louver size. The 2 1/2", 3 1/2" & 4 1/2" louver sizes are shown below (the 1 7/8" is not shown) and can be used as a guide to see how they compare against each other when looking through them.

    INSIDE MOUNT (recessed within your window opening)

    We recommend an Inside Mount whenever possible for a neater look. Minimum depth required for an inside mount is 1 1/2".

    When you specify an inside mount, provide us the exact window opening size. DO NOT TAKE A DEDUCTION!

    The manufacturer will automatically deduct approximately 1/4" so your shutters will operate properly and not rub against your window frame.

    FOR WIDTH, measure in three places and use the narrowest width.
    FOR HEIGHT, measure in three places and use the shortest measurement.

    Below is a diagram showing how an inside shutter will mount.

    MEASURING EXAMPLES (for Rectangular Full-Height Shutters)

    For an inside mount:

    To measure the width for an inside mount rectangular window measure in three locations across the top, the middle, and the bottom. Note the narrowest of these measurements.
    (For a diagram of this see illustration A)

    To measure the height for an inside mount rectangular window measure up and down the window at the left, the center, and the right. Note the shortest of these measurements.
    (For a diagram of this see illustration B)

    Illustration A
    Illustration B
    Illustration C
    Illustration D
    Illustration E
    Request a Professional Installation Service
  • Measuring Outside Mount for Plantation Shutters

    Featured Product

    Norman Woodlore Plantation Shutter

    Norman Woodlore Plantation Shutter
    • Durable Premium faux wood shutter
    • Available in 3 colors
    SHOP NOW

    Simplicity Wood Shutter

    Simplicity Wood Shutter
    • Available in a variety of colors and stains
    • Almost entirely assembled right out of the box
    SHOP NOW

    BE PRECISE

    Always measure with a steel tape. Never use a cloth tape. Measure sizes to the nearest eighth of an inch (1/8"). don't be surprised if your windows are not perfectly square. Most aren't. You probably won't notice.

    On your notes clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Try to always measure the width first, then height.

    All shutters come with frames for easy mounting.

    Louver Sizes
    We have four louver sizes available 1 7/8", 2 1/2", 3 1/2" & 4 1/2". For a more contempory look or for less view obstruction choose a larger louver size. For a more traditional design you should choose a smaller louver size. The 2 1/2", 3 1/2" & 4 1/2" louver sizes are shown below (the 1 7/8" is not shown) and can be used as a guide to see how they compare against each other when looking through them.

    OUTSIDE MOUNT (mounted on your molding or drywall)

    Outside mounts hang outside the window opening either on the wood frame or above and beyond the wood frame. That will make your window appear bigger and hide unattractive windows. Outside Mounts are necesssary whenever your window openings are too shallow to place a shutter.To ensure shutter will mount properly, add at least 1 ½” inch on each of the four sides.

    For outside mounts, specify the exact width and exact height you want the product to be. We will make your product the exact size you specify and we will not take any deductions.

    Below is a diagram showing how an outside shutter will mount.

    MEASURING EXAMPLES (for Rectangular Full-Height Shutters)

    For an inside mount:

    To measure the width for an inside mount rectangular window measure in three locations across the top, the middle, and the bottom. Note the narrowest of these measurements.
    (For a diagram of this see illustration A)

    To measure the height for an inside mount rectangular window measure up and down the window at the left, the center, and the right. Note the shortest of these measurements.
    (For a diagram of this see illustration B)

    Illustration A
    Illustration B
    Illustration C
    Illustration D
    Illustration E

    Request a Professional Installation Service

Horizontal shadings combine the soft feel of shades with the horizontal functionality of blinds. Often composed of two layers of soft fabric.
  • Measuring Inside Mount for Horizontal Shades

    Featured Product

    Radiance 2" Light Filtering Sheer Shadings

    Radiance 2 Inch Light Filtering Sheer Shadings
    • Fabrics gently diffuse the light, but also provide the light control of a blind
    • Available in an array of colors
    SHOP NOW

    Flat Sheer Shading

    Flat Sheer Shading
    • Provides privacy while illuminating your room
    • Available in a variety of colors and patterns
    SHOP NOW

    Measuring - Inside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an inside mount:

    Measuring Inside Mount for Horizontal Shades

    Measure the opening width at the top, center and bottom, recording the narrowest width. Always measure to the nearest 1/8", and be sure to use a steel tape measure. See tip below.

    Measure the height left, right and center, recording the tallest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. They will deduct between 1/16" and 3/8" from the width on each side. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Request a Professional Installation Service
  • Measuring Outside Mount for Horizontal Shades

    Featured Product

    Radiance 2" Light Filtering Sheer Shadings

    Radiance 2 Inch Light Filtering Sheer Shadings
    • Fabrics gently diffuse the light, but also provide the light control of a blind
    • Available in an array of colors
    SHOP NOW

    Flat Sheer Shading

    Flat Sheer Shading
    • Provides privacy while illuminating your room
    • Available in a variety of colors and patterns
    SHOP NOW

    Measuring - Outside Mount

    • Use a steel measuring tape.
    • Measure to the nearest eighth of an inch - don't round your measurements.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - Add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect, your window blinds will not fit. Please take your time and double check your measurements.

    Click Here for a printable guide

    Specific Measuring Instructions Below:

    For an outside mount:

    Measuring Outside Mount for Horizontal Shades

    Measure the opening width. If there is room, add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    Measure the opening height. Add a minimum of 2 1/2" in height (3" for 2" horizontal blinds) to allow space for mounting brackets above the opening plus enough overlap for the bottom. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly out of square, you might want to consider an Outside Mount to hide the window.

    Request a Professional Installation Service

Measuring Guidelines for Arches

Arched windows may seem difficult to measure, but with the information below you'll find it to be an easy task. There are several styles of arched window, and measuring guidelines vary somewhat between styles. If your style is not listed below, call 800-505-1905 and one of our design experts will help you get the right measurements!

Perfect Arch

Perfect Arch
Perfect Arch

To be a perfect arch, the height must be exactly half the width. If not exact, it's considered a non-perfect arch. In some cases, you'll need to provide a paper template of your window. Please call us at 800-505-1905 for more information.

  1. To find the width, measure from left to right at the bottom of the arch. If you plan to mount a window covering below the arch (arches often sit atop another window), take into account where each window covering will need to mount.
  2. For the height, measure from the very center of the width to the highest point on the arch.
  3. For an inside mount, order your product in the exact measurements you took, with no deductions. The factory will apply deductions when making your product. For an outside mount, add 2” to both the width and height. Your product will be made to the exact measurements you specify.

Palladian Arch

Palladian Arch
Palladian Arch

This style arch is when the height is more than half the width. The arched part is steeper compared to the perfect arch.

  1. To find the width, measure from left to right at the bottom of the arch. If you plan to mount a window covering below the arch (arches often sit atop another window), take into account where each window covering will need to mount.
  2. For the height, measure from the very center of the width to the highest point on the arch.
  3. For an inside mount, order your product in the exact measurements you took, with no deductions. The factory will apply deductions when making your product. For an outside mount, add 2” to both the width and height. Your product will be made to the exact measurements you specify.

Eyebrow Arch

Eyebrown
Eyebrow Arch

An eyebrow arch will be shorter in height than a perfect arch.

  1. To find the width, measure from left to right at the bottom of the arch. If you plan to mount a window covering below the arch (arches often sit atop another window), take into account where each window covering will need to mount.
  2. For the height, measure from the very center of the width to the highest point on the arch.
  3. For an inside mount, order your product in the exact measurements you took, with no deductions. The factory will apply deductions when making your product. For an outside mount, add 2” to both the width and height. Your product will be made to the exact measurements you specify.

Eyebrow Arch with Legs (also known as Elongated Arch)

Elongated Arch
Elongated Arch

This style has two vertical sides leading up to where the arch starts. The sides are called legs. You will take four different measurements for this style.

  1. To find the width, measure from left to right at the bottom of the arch. If you plan to mount a window covering below the arch (including the elongated or “legged” portion), take into account where each window covering will need to mount.
  2. For the height, measure from the very center of the width to the tallest point of the arch.
  3. Measure each leg's height from the base to the point where it starts to curve into an arch. Make sure to measure both, as the legs may have slightly different measurements.
  4. For an inside mount, order your product in the exact measurements you took, with no deductions. The factory will apply deductions when making your product. For an outside mount, add 2” to both the width and height. Your product will be made to the exact measurements you specify.

Quarter Arch

Perfect Quarter Arch
Perfect Quarter Arch
Non-Perfect Quarter Arch
Non-Perfect Quarter Arch
Elongated Quarter Arch
Elongated Quarter Arch

A Quarter Arch is one half of a regular arch. It will consist of a right angle with the arched section across from the right angle. In some cases, you'll need to provide a paper template of your window. Please call us at 800-505-1905 for more information.

  1. To find the width, measure from left to right at the bottom of the arch. If you plan to mount a window covering below the arch (arches often sit atop another window), take into account where each window covering will need to mount.
  2. For the height, measure the straight side, from the base of the arch to the tallest point.
  3. For an inside mount, order your product in the exact measurements you took, with no deductions. The factory will apply deductions when making your product. For an outside mount, add 2” to both the width and height. Your product will be made to the exact measurements you specify.
  4. Make sure you have a good mounting surface on both the bottom and the side, as this arch style may require mounting on both sides.

Important notes:

  • Cellular (honeycomb) shades and pleated shades: Side mounts are upon request only and are not available for arches wider than 40”.
  • Minimum window opening depth for inside mount is 1 ½”; if you want your window covering fully recessed (not sticking out of the window opening at all), minimum depth is 2 ¼”.
  • Make sure you have a good mounting surface at the base of the arch as most arches are bottom mount only.
  • Round down to the nearest 1/8” if your measurement falls on a 16th or 32nd mark.

Measuring for Angle-Top and Angle-Bottom Windows

Measuring for Inside Mount

Inside mount shades hang within the window opening. This is the mount we recommend in most cases, as it provides a neat, clean look and usually easier installation.

Note: For inside mount, use exact measurements, without making any deductions. The factory will apply deductions when making your product to ensure a proper fit.

Width

  1. Measure width from left to right at the top, middle and bottom of the rectangular portion of your window opening. Always measure at the depth within the window frame where you'll install your brackets. You will not take any measurements from the angled portion for this step.
  2. Record the smallest of the three measurements to the nearest ⅛”.

Tall-Side Height

  1. Measure the height of the "tall side" of the window opening, from the bottom edge to the top corner of the angled portion (for an angle-top window), or from the top edge to the bottom corner of the angled portion (for an angle-bottom window).
  2. Record this measurement (to the closest ⅛”) as your height.

Short-Side Height

  1. Measure the height of the "short side" of the window opening, from the bottom edge (for angle-top windows), or from the top edge (for angle-bottom windows), to where the angle starts.
  2. Record this measurement (to the closest ⅛”) as your "short side height".

Angle-Side Length

  1. Measure the length of the angled line, from where the angled portion of the window starts to its top corner (angle-top windows) or its bottom corner (angle-bottom windows).
  2. Record this measurement (to the closest ⅛”) as your "angle length".

Measuring for Outside Mount

Outside mount shades hang outside your window opening, overlapping the edges. We recommend outside mount for windows that have inadequate mounting depth or obstructions that prevent a shade from being mounted, as well as for windows that are out of square.

To determine if your window is out of square, take both diagonal measurements, from corner to corner, only in the section of the window that isn't angled. If the difference between the two is ⅛” or more, the window is out of square.

Note: Record your exact measurements, without making any deductions. The factory will make your shade to the exact dimensions you provide.

Width

  1. Measure the window opening from left to right, in only the non-angled section of the window, and add the amount you want the shade to overlap the window opening. We recommend at least 2" on both sides.
  2. Record this measurement as your width.

Tall-Side Height

  1. Determine where you want the top corner (for angle-top windows) or the bottom corner (for angle-bottom windows) of the "tall side" of your shade to be, and mark the spot.
  2. Measure the height from the spot you marked to the bottom of the window opening (for angle-top windows) or to the top of the window opening (for angle-bottom windows). Add the amount you want your shade to overlap. We recommend at least 2".
  3. Record this measurement as your height.

Short-Side Height

  1. Determine where you want the "short side" of your shade to end and mark the spot.
  2. Measure the height from the spot you marked to the bottom of the window opening (for angle-top windows) or to the top of the window opening (for angle-bottom windows). Add the amount you want your shade to overlap. We recommend at least 2".
  3. Record this measurement as your "short side height".

Angle-Side Length

  1. Measure the length of the angled line, connecting the spot you marked for the short side to the spot your marked for the tall side.
  2. Record this measurement as your "angle length".
Skylight Shades

Measuring Guidelines for Skylights

Skylight windows are typically hard to reach and can be tricky to measure. Below is a helpful guide to getting perfect measurements for your skylight.

Inside mount:

  1. Check to see if your skylight has enough depth for mounting. Skylight window coverings typically need a minimum depth of 1 ½” to install brackets and mount the product.
  2. Width: Measure in 3 places: top, middle and bottom. Measure from edge to edge inside the window opening at the spots where you plan to place the mounting brackets.
  3. Height: Measure in 3 places: left, center and right. If the window height is more than 96", measure the width every 48". Taller windows may need extra mounting hardware.
  4. Order your product at the narrowest width and the shortest height. Use the exact measurements, taking no deductions. The factory will apply the necessary deductions when making your product.

Outside mount:

  • To outside mount skylight shades, you need at least 1” of flat surface on all sides of the window.
  • Width: Measure the width of the opening at any location on the window. Add 2” per side, for a total of 4”. This is your width measurement.
  • Height: Measure the height of the opening at any location on the window. Add 2” to the top and bottom, for a total of 4”. This is your height measurement.
  • Order your product at your exact measurements, taking no deductions. Your product will be made at the exact size you order it.

Important notes to make:

  • Side mount is not available for cellular skylights.
  • For inside mount:
    • All corners of the window must be 90 degrees. If not, you will have to do an outside mount.
    • If the window is out of square by ¼” or more, you will have to do an outside mount. To find out if your window is out of square, take both diagonal measurements, from one corner to its opposite. If the difference between the two is ¼” or more, the window is considered out of square.
  • When assessing mounting depth, take into account any obstacles that may be in the window opening, such as window cranks or handles. These can prevent you from mounting a shade properly.
  • Side tracks must be mounted for both inside mount and outside mount, except in cases where the shade doesn't come with side tracks.

Measuring for Draperies

Draperies bring classic elegance to your home with their long, flowing style and eye-popping colors and patterns. Here are instructions on measuring windows for draperies, which are usually mounted outside the window frame.

Please note that these are just guidelines. You can add size to your draperies as desired.

Step 1: Determine drapery rod placement

The length and style of your drapes will be affected by where you mount the drapery rod. To make the window appear larger when the drapes are closed, and to show more of the window when they're open, we recommend:

  • Mounting the rod 6" above the window (if space allows)
  • Extending the rod 6" on each side of the window (for a total of 12")

Note on Inside Mount: While you can do an inside mount for draperies, outside mount is far more common. If you wish to inside mount draperies, please call 800-505-1905 to speak with one of our Design Consultants.

Step 2: Determine the width you'd like

When placing your order, select the exact width you want your panel(s) to cover. You'll usually choose one of two options: side panels only or full-coverage panels.

Understanding fullness: It's important to note that your custom drapes will be made with 200% fullness, which refers to the extra fabric that goes into the drape. For example, if you order a width of 24", your drapes will be made with 48" of fabric and pleated down to get a 24" width. This gives the drapery a textured look and keeps it from looking flat when closed. However, you may want to order a smaller width if you're concerned about having too much fabric.

Side Panels: Side panels are mainly for decoration, and provide less privacy. This style is not meant to close all the way, instead hanging at the sides of the window. To measure for side panel width, simply measure the width you need the panels to cover, and order at exactly that width. For instance, if you'd like your panels to cover 24", enter 24" as your width. Side panels can also be collapsed to cover less space when desired.

Full Coverage Draperies: If you'd like full coverage, you'll need enough panels to cover your entire window. Here's how to measure:

  • Measure the width of the window opening from outside edge to outside edge of the window casing.
  • Add 6" to each side (12" total).
  • Take the total number (your measured width plus what you added to each side), and divide it by the number of panels you want to order. The most common is a center split, which consists of two panels that open to the sides.
  • Order each panel in at least the width you calculated from Step 3. (You can add more width as desired.)

Example: To cover a 48" window with two panels, you would add 12" to 48" (your measured width) and divide by 2 (number of panels) to get 30". The two panels ordered each need to be 30" or wider.

Step 3: Determine the length you'd like

Once you've determined where you'll mount your drapery rod, you need to determine your Rod to Floor Height. Here's how to measure:

  • Use a pencil to mark the height where you will mount the brackets for your drapery rod.
  • Measure down to where you want the drapery to hang (usually the floor or bottom of the window).
  • You will use this measurement as your height when ordering. However, do not hang any hardware until the drapery arrives.

Step 4: Choose your drapery style

The following styles are recommended for draperies:


Valance length drapery

Valance

  • Choose length from 10-30".
  • This style is often used to add the appearance of height to a window.

Floor length drapery

Floor

  • Choose length that will fall 3/8" above the floor.
  • This style is recommended for drapes that will be opened and closed frequently.

Sweeping length drapery

Sweep, Brushing or Cuff Length

  • Choose a length 1"-3" longer than your Rod to Floor Height.
  • This style is ideal for providing extra support in precise mounting situations, such as a ceiling mount.

Pooling length drapery

Pooling or Puddling

  • Choose a length 6"-12" longer than your Rod to Floor Height.
  • This style is recommended for stationary panels only.
  • A small "puddle" or "break" often enhances the finished look and is a great way to disguise uneven floors.

Step 5: Choose a drapery rod

When determining your rod width, note that the width does not include the finials. Also keep in mind:

  • The finials will add a width of approximately 6" to each side. You can find these exact measurements on your product's page.
  • Draperies will not move over brackets.

Other considerations when measuring for draperies

  • Pleated style draperies consisting of only one panel will need to be attached to the drapery rod with C-rings instead of fully closed rings. This is because there will be extra center support brackets. A full panel is normally used for openings such as a sliding door.
  • With pleated style draperies, pin locations can be different. Most pins can be adjusted up or down to account for your height.
  • Pleated style drapes can work with a traverse rod or a regular rod with rings.
  • Pleated, grommet and rod pocket drapes will have a 1" fabric header.
  • Grommet style panels are normally used as decorative panels.
  • 200% fullness is built into the size you order your draperies.
Fabric valances are decorative tops that accompany your window treatments.
  • How To Measure For Decorative Top Treatments

    Step 1 ) Determine your "Valance Width".
    • To do this, measure your window opening width (the total glass width inside any window casings). Now add 8" to this measurement (4" for each side) to determine your total valance width.

      (Example: 42" window opening + 8" (4" x 2) = 50" valance width.)

    • Measuring Inside Mount for Fabric Valances

    • Note: If you are layering your top treatment over a blind or shade and the blind is an Inside Mount, then your valance width should be 4" wider that what it is covering. In cases of an outside mount blind, you would measure the total width of the blind, and then add 8" (4" for each side) to that measurement.

      (Example: 48" wide outside-mount blind + 8" (4" x 2) = 56" valance width.)


      Measuring Inside Mount for Fabric Valances

    Step 2 ) Determine how much projection you need (if layering over an existing treatment).


    • If you are layering the top-treatment over an existing covering, you must determine the projection of the top treatment to make sure it won't interfere with the operation of the covering. Your top treatment projection should be at least 2" more than the product it is covering.

      (Example: If the drapery rod projects 6" from the wall, your top treatment would need an 8" projection. If a vertical blind had a 5 1/2" projection in the open position, you would need an
      7 1/2 " projection for your top treatment.)

      Use these measurements to determine if you will have enough projection. If not, you may need to purchase an extension bracket to gain the necessary wall projection required for mounting.

    Hardware Type Bracket Projection from Wall (some are extendable)
    Basic 2" Curtain Rod
    (for Box-Pleat Valance)
    2 - 5"
    Metal Hardware 3 1/2" - 5"
    Wood Hardware 3 1/2"

    Step 3 ) Determine your total valance rod length.

    • To determine this length so that you can order your hardware , take the window opening width, plus the 8" (4" each side) to clear the window casing (valance width). Then add another 12"
      (6" each side) to make sure you leave enough room for the finials and brackets. This is your total valance rod length.

      (Example: 42" window opening + 8" (4" x 2) = 50" valance width. 50" valance width + 12 " (6" x 2) = 62 " total valance rod width).
    Measuring Inside Mount for Fabric Valances
    Request a Professional Installation Service
  • How To Measure For Decorative Top Treatments

    Step 1 ) Determine your "Valance Width".
    • To do this, measure your window opening width (the total glass width inside any window casings). Now add 8" to this measurement (4" for each side) to determine your total valance width.

      (Example: 42" window opening + 8" (4" x 2) = 50" valance width.)

    • Measuring Outside Mount for Fabric Valances

    • Note: If you are layering your top treatment over a blind or shade and the blind is an Inside Mount, then your valance width should be 4" wider that what it is covering. In cases of an outside mount blind, you would measure the total width of the blind, and then add 8" (4" for each side) to that measurement.

      (Example: 48" wide outside-mount blind + 8" (4" x 2) = 56" valance width.)


      Measuring Outside Mount for Fabric Valances

    Step 2 ) Determine how much projection you need (if layering over an existing treatment).


    • If you are layering the top-treatment over an existing covering, you must determine the projection of the top treatment to make sure it won't interfere with the operation of the covering. Your top treatment projection should be at least 2" more than the product it is covering.

      (Example: If the drapery rod projects 6" from the wall, your top treatment would need an 8" projection. If a vertical blind had a 5 1/2" projection in the open position, you would need an
      7 1/2 " projection for your top treatment.)

      Use these measurements to determine if you will have enough projection. If not, you may need to purchase an extension bracket to gain the necessary wall projection required for mounting.

    Hardware Type Bracket Projection from Wall (some are extendable)
    Basic 2" Curtain Rod
    (for Box-Pleat Valance)
    2 - 5"
    Metal Hardware 3 1/2" - 5"
    Wood Hardware 3 1/2"

    Step 3 ) Determine your total valance rod length.

    • To determine this length so that you can order your hardware , take the window opening width, plus the 8" (4" each side) to clear the window casing (valance width). Then add another 12"
      (6" each side) to make sure you leave enough room for the finials and brackets. This is your total valance rod length.

      (Example: 42" window opening + 8" (4" x 2) = 50" valance width. 50" valance width + 12 " (6" x 2) = 62 " total valance rod width).
    Measuring Outside Mount for Fabric Valances

    Request a Professional Installation Service

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    French doors

    The wider and taller you specify your product, the better your privacy, insulation, and light control. You also need room (2" to 3-1/2") for the mounting brackets at the top, and the optional hold-down brackets (about 2") at the bottom. Consider mounting the window treatment a bit higher than you’d think so when the blind is raised it blocks less of your view. Add at least 3" at the top.

    For the width, add at least an inch or two on both sides of the glass. Usually the deadbolt latch, however, will constrain the width you’d prefer. The product will usually fall just inside the deadbolt. In the case of a lever handle, certain products will slip between the handle and the door.

    All products will work on either a wood or metal door. For metal doors, you’ll probably need "metal screws" designed for attaching to metal doors, which are normally hollow.

    Measuring for a Window with Trim or Molding

    If you are using an outside mount and your window has trim, you should measure from the far left side of the trim to the far right side of the trim (so as to cover all trim from the start of one side to the end of the other). Give that measurement as your width. If you would like for your window trim to show, then give us the measurement of the window opening. If you want some trim covered but not all, add that amount to the width and be sure to add for both sides (exmaple - you want to cover 2" of trim, so you would take the window opening width, and add 4 inches (2 inches of trim to cover x 2 sides). For the height, measure from the top of the trim to the bottom of the trim or sill. If you wish to mount above the trim, measure starting 2” above the molding to the bottom of the trim or sill, and that will be your height.

    Tile and wood obstructions

    Sometimes tile or trim wrap around into the window, usually several inches up from the bottom. This is common near kitchen sinks (back-splashes) and bathtubs. Most products can be cut by the manufacturers on the products’ sides to accommodate this. There is a slight surcharge depending on the product and whether the cutout is on one or both sides.

    Measure so that your product hangs in front of the crank. Consider adding an inch or so to mitigate the slight bulge the product will make as it hangs in front of the crank. Also, the crank can usually be removed or re-positioned to point upwards, which minimizes its projection and obstruction. You may also be able to find a crank replacement device that looks like a wing-nut, and has a tiny projection.

    Sliding Doors

    Verticals can be specified to mount either within the door frame or over it on the wall. When determining this, consider whether the handle is an obstruction, and the amount of depth available. There is sometimes molding or trim near the baseboard which may have to be removed, or at least taken into consideration when determining width. For an outside mount it is normally sufficient to measure about 4 inches wider on both sides. The wider you specify, the better your privacy, insulation, and light control. For the height, specify about 3 to 5 inches above the top of the frame. A typical height for a vertical is 84"; however, whatever you prefer is fine. Blinds and shades can be specified as two-on-one headrail. This allows you to raise one while leaving the second one lowered. There is a surcharge for this. You can just order separate products.

    Arches

    How to Measure for Arches

    First, measure the base width inside the arch opening.

    Then measure the height at the middle (tallest) point inside of the arch opening.

    Other suggestions: Keep in mind that if you are ordering an arch, the height of your arch must be half the width. You will have a perfect semi-circle. If your window arch is not perfect, please call a representative to discuss your options (1-800-935-7028).

    Windows without a top (arched/angled top)

    There is no special measuring required, but you'll need to ask for side-mount brackets.

    Shallow sill depth

    See our charts regarding the manufacturer's minimum sill depths required to fasten the brackets, and the minimum depth necessary for a flush mount (where the product does not protrude into the room. It has been our experience, however, that only 5/8" to 3/4" is all that is necessary to securely anchor most brackets; you'll need to angle the screw back towards the glass and occasionally add one extra bracket. Blinds.com will not be responsible for products which are not within the manufacturers' specifications. Give us a call, or email for further explanation.

    Corner windows

    Corner windows for privacy

    When two outside mount verticals meet in a corner, or when other inside mount products meet in a corner where there is only glass (no sheet rock), there can be a privacy problem. That's due to a gap where the products "meet". In order to minimize the problem, consider making one product bypass the other, then specify the other product to butt into the first. (See illustration below.)

    Bay Windows

    You will need poster board to help you correctly assess the measurements for your bay windows. First determine the depth of the product you are mounting and use this for the width of your poster board. You can obtain this depth on product pages or through customer service at 1-800-935-7028.

    Next cut out two pieces of poster board that are the width of the product depth by 12" long. If extra clearance requires the use of extension brackets or spacer blocks, include the extra clearance to the width dimension of the poster board.

    Place the strips you have cut as shown below. Position strip "A" in the left angle first, then bring together strips "A" and "B" until the front corners of the poster board meet. This will give you the correct angle. Mark points "A" and "B". Repeat for strips "C" and "D".

    Measuring for Bay Windows

    Measure from the left corner of "B" to the right corner of "C" to determine the width measurement of the center window treatment. Measure from the right corner of "A" outward to the desired width to determine the width measurement of the left window treatment. Measure from the left corner of "D" outward to the desired width to determine the width measurement of the right window treatment.

    The height of the window treatments are determined by standard horizontal blind guidelines.

    Request a Professional Installation Service

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    French doors

    The wider and taller you specify your product, the better your privacy, insulation, and light control. You also need room (2" to 3-1/2") for the mounting brackets at the top, and the optional hold-down brackets (about 2") at the bottom. Consider mounting the window treatment a bit higher than you’d think so when the blind is raised it blocks less of your view. Add at least 3" at the top.

    For the width, add at least an inch or two on both sides of the glass. Usually the deadbolt latch, however, will constrain the width you’d prefer. The product will usually fall just inside the deadbolt. In the case of a lever handle, certain products will slip between the handle and the door.

    All products will work on either a wood or metal door. For metal doors, you’ll probably need "metal screws" designed for attaching to metal doors, which are normally hollow.

    Measuring for a Window with Trim or Molding

    If you are using an outside mount and your window has trim, you should measure from the far left side of the trim to the far right side of the trim (so as to cover all trim from the start of one side to the end of the other). Give that measurement as your width. If you would like for your window trim to show, then give us the measurement of the window opening. If you want some trim covered but not all, add that amount to the width and be sure to add for both sides (exmaple - you want to cover 2" of trim, so you would take the window opening width, and add 4 inches (2 inches of trim to cover x 2 sides). For the height, measure from the top of the trim to the bottom of the trim or sill. If you wish to mount above the trim, measure starting 2” above the molding to the bottom of the trim or sill, and that will be your height.

    Tile and wood obstructions

    Sometimes tile or trim wrap around into the window, usually several inches up from the bottom. This is common near kitchen sinks (back-splashes) and bathtubs. Most products can be cut by the manufacturers on the products’ sides to accommodate this. There is a slight surcharge depending on the product and whether the cutout is on one or both sides.

    Measure so that your product hangs in front of the crank. Consider adding an inch or so to mitigate the slight bulge the product will make as it hangs in front of the crank. Also, the crank can usually be removed or re-positioned to point upwards, which minimizes its projection and obstruction. You may also be able to find a crank replacement device that looks like a wing-nut, and has a tiny projection.

    Sliding Doors

    Verticals can be specified to mount either within the door frame or over it on the wall. When determining this, consider whether the handle is an obstruction, and the amount of depth available. There is sometimes molding or trim near the baseboard which may have to be removed, or at least taken into consideration when determining width. For an outside mount it is normally sufficient to measure about 4 inches wider on both sides. The wider you specify, the better your privacy, insulation, and light control. For the height, specify about 3 to 5 inches above the top of the frame. A typical height for a vertical is 84"; however, whatever you prefer is fine. Blinds and shades can be specified as two-on-one headrail. This allows you to raise one while leaving the second one lowered. There is a surcharge for this. You can just order separate products.

    Arches

    First, measure the base width inside the arch opening.

    Then measure the height at the middle (tallest) point inside of the arch opening.

    Other suggestions: Keep in mind that if you are ordering an arch, the height of your arch must be half the width. You will have a perfect semi-circle. If your window arch is not perfect, please call a representative to discuss your options (1-800-935-7028).

    Windows without a top (arched/angled top)

    There is no special measuring required, but you'll need to ask for side-mount brackets.

    Shallow sill depth

    See our charts regarding the manufacturer's minimum sill depths required to fasten the brackets, and the minimum depth necessary for a flush mount (where the product does not protrude into the room. It has been our experience, however, that only 5/8" to 3/4" is all that is necessary to securely anchor most brackets; you'll need to angle the screw back towards the glass and occasionally add one extra bracket. Blinds.com will not be responsible for products which are not within the manufacturers' specifications. Give us a call, or email for further explanation.

    Corner windows

    When two outside mount verticals meet in a corner, or when other inside mount products meet in a corner where there is only glass (no sheet rock), there can be a privacy problem. That's due to a gap where the products "meet". In order to minimize the problem, consider making one product bypass the other, then specify the other product to butt into the first. (See illustration below.)

    Bay Windows

    You will need poster board to help you correctly assess the measurements for your bay windows. First determine the depth of the product you are mounting and use this for the width of your poster board. You can obtain this depth on product pages or through customer service at 1-800-935-7028.

    Next cut out two pieces of poster board that are the width of the product depth by 12" long. If extra clearance requires the use of extension brackets or spacer blocks, include the extra clearance to the width dimension of the poster board.

    Place the strips you have cut as shown below. Position strip "A" in the left angle first, then bring together strips "A" and "B" until the front corners of the poster board meet. This will give you the correct angle. Mark points "A" and "B". Repeat for strips "C" and "D".

    Measure from the left corner of "B" to the right corner of "C" to determine the width measurement of the center window treatment. Measure from the right corner of "A" outward to the desired width to determine the width measurement of the left window treatment. Measure from the left corner of "D" outward to the desired width to determine the width measurement of the right window treatment.

    The height of the window treatments are determined by standard horizontal blind guidelines.

    Request a Professional Installation Service