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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 Inside and Outside Mount Illustrations

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 your product to find the required depth. If your window lacks 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, middle 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.

How to Measure for Wood Blinds

Wood blinds are durable, attractive and easy to use. Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure Wood Blinds guide makes measuring for your blinds easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Wood Blinds:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they look alike.

How to Measure for Inside Mount Wood Blinds

Inside Mount Blinds

Inside mount wood blinds are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re measuring for inside mount wood blinds, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the wood blind you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three – this is the number you submit for your window’s width.
  3. Measure the height of your window opening in three places: left, center and right. Circle the tallest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Wood Blinds

Outside Mount Blinds

Outside mount wood blinds are mounted on the window molding or wall above your window. Outside mount blinds are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Outside mount wood blinds will be made at the exact size you specify. Follow these simple steps to measure your windows for outside mount wood blinds:

  1. Check the mounting requirements on your wood blinds to ensure you have enough flat surface for the mounting hardware.
  2. Determine the width of the wood blinds you want to order. If you have window trim, simply measure to the far edges of the trim from left to right.
  3. If your window has no trim, we recommend adding two inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the blinds you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount wood blinds, your product will be made to the exact specified size.

How to Measure for Faux Wood Blinds

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Faux Wood Blinds guide makes measuring blinds easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


How to Measure for Inside Mount Faux Wood Blinds

Inside Mount Blinds

Inside mount faux wood blinds are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount faux wood blinds, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the window treatment you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window opening. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three – this is the number you submit for your window’s width.
  3. Measure the height of your window opening in three places: left, center and right. Circle the tallest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions taken. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Faux Wood Blinds

Inside Mount Blinds

Outside mount faux wood blinds are mounted on the window molding or wall above your window. Outside mount blinds are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Follow these simple steps to measure your windows for outside mount faux wood blinds:

  1. Check the mounting requirements on your faux wood blinds to ensure you have enough flat surface for an outside mount.
  2. Determine the width of the faux wood blinds you want to order. If you have window trim, simply measure to the far edges of the trim from left to right.
  3. If your window has no trim, we recommend adding two inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the blinds you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount faux wood blinds, your product will be made to the exact specified size.

How to Measure for Mini Blinds

Interested in measuring your windows for mini blinds? Our guide can show you the steps for measuring and installing these affordable, versatile and sturdy window treatments.

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Mini Blinds guide makes measuring blinds easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Mini Blinds:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch.
  • If you’re measuring for more than one window, measure each one individually — never assume that your windows are the same size, even if they look alike.

How to Measure for Inside Mount Mini Blinds

Outside Mount Blinds

Inside mount mini blinds are installed inside the window frame or casing — they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount mini blinds, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the window treatment you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window opening. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three — this is the number you submit for your window’s width.
  3. Measure the height of your window opening in three places: left, center and right. Circle the tallest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Mini Blinds

Outside Mount Blinds

Outside mount mini blinds are mounted on the window molding or wall above your window. Outside mount blinds are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Follow these simple steps to measure your windows for outside mount mini blinds:

  1. Check the mounting requirements on your mini blinds to ensure you have enough flat surface for the mounting hardware.
  2. Determine the width of the mini blinds you want to order. If you have window trim, simply measure to the far edges of the trim from left to right.
  3. If your window has no trim, we recommend adding two inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the blinds you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount mini blinds, your product will be made to the exact specified size.

How to Measure for Vertical Blinds

Vertical blinds are a great window treatment for large windows or patio doors.

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Vertical Blinds guide makes measuring blinds easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Vertical Blinds:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they look alike.

How to Measure for Inside Mount Vertical Blinds

Inside Mount Vertical Blinds

Inside mount vertical blinds are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount vertical blinds, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the window treatment you’ve chosen to ensure your window meets the requirement for an inside mount. If you have a door handle, make sure there is depth in front for mounting.
  2. Measure the width of your window opening. Record only the width measurement at the top of your window opening for vertical blinds.
  3. Measure the height of your window opening in three places: left, center and right. Circle the shortest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Vertical Blinds

Outside Mount Vertical Blinds

Outside mount vertical blinds are mounted on the wall above your window. We recommend outside mount vertical blinds for patio doors or sliding doors. Outside mount vertical blinds will be made at the exact size you specify. Follow these simple steps to measure your windows for outside mount vertical blinds:

  1. Check the mounting requirements on your vertical blinds to ensure you have enough flat surface for the mounting hardware.
  2. If your window has no trim, we recommend adding at least four inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line. Please note it is not ideal to mount vertical blinds to a window trim.
  3. Determine the height of the blinds you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  4. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount vertical blinds, your product will be made to the exact specified size.

How to Measure for Cellular Shades

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Cellular Shades guide makes measuring easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Click below or call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Cellular Shades:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they look alike.

How to Measure for Inside Mount Cellular Shades

How to Measure for Inside Mount

Inside mount cellular shades are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount cellular shades, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the cellular shade you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three – this is the number you submit for your window’s width.
  3. Measure the height of your window opening in three places: left, center and right. Circle the tallest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Cellular Shades

How to Measure for Outside Mount

Outside mount cellular shades are mounted on the window molding or wall above your window. Outside mount shades are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Outside mount cellular shades will be made at the exact size you specify. Follow these simple steps to measure your windows for outside mount cellular shades:

  1. Check the mounting requirements on your cellular shades to ensure you have enough flat surface for the outside mount.
  2. Determine the width of the cellular shades you want to order. If you have window trim, simply measure to the far edges of the trim from left to right.
  3. If your window has no trim, we recommend adding two inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the shades you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount faux wood blinds, your product will be made to the exact specified size.

How to Measure for Roller Shades

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Roller Shades guide makes measuring easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Click below or call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Roller Shades:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch. Never round up or down to the nearest half or whole inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they may look alike.

How to Measure for Inside Mount Roller Shades

How to Measure for Inside Mount

Inside mount roller shades are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount roller shades, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the roller shade you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window. Measure your width only at the top of the window for roller shades.
  3. Measure the height of your window opening in three places: left, center and right. Circle the shortest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Roller Shades

How to Measure for Outside Mount

Outside mount roller shades are mounted on the window molding or wall above your window. Outside mount shades are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Follow these simple steps to measure your windows for outside mount roller shades:

  1. Check the mounting requirements on your roller shades to ensure you have enough flat surface for the mounting hardware.
  2. Determine the width of the roller shades you want to order. Measure the width of the material and add 3 inches to determine the bracket-to-bracket width.
  3. If your window has no trim, we recommend adding two to three inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the shades you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount roller shades, your product will be made to the exact specified size.

How to Measure for Roman Shades

Roman shades allow you to dress up your room in almost any fashion or style to suit your taste. They’re easy to operate and look great in any room.

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Roman Shades guide makes measuring easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Roman Shades:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure to the nearest 1/8 inch. Never round up or down to the nearest half or whole inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they may look alike.

How to Measure for Inside Mount Roman Shades

How to Measure for Inside Mount

Inside mount Roman shades are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount Roman shades, follow these steps:

  1. Measure the depth of your window frame, from the front of the opening to the glass. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the Roman shade you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Measure the width of each window. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three – this is the number you submit for your window’s width.
  3. Measure the height of your window opening in three places: left, center and right. Circle the tallest measurement - this is the number you submit for your window’s height.
  4. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  5. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Roman Shades

How to Measure for Outside Mount

Outside mount Roman shades are mounted on the window molding or wall above your window. Outside mount shades are a good choice if an inside mount is not possible due to window depth or obstructions around the window frame. Follow these simple steps to measure your windows for outside mount Roman shades:

  1. Check the mounting requirements on your Roman shades to ensure you have enough flat surface for mounting hardware.
  2. Determine the width of the Roman shades you want to order. If you have window trim, simply measure to the far edges of the trim from left to right.
  3. If your window has no trim, we recommend adding two to three inches on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the shades you will order. If you have a protruding window sill, start at the sill and measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  5. If you do not have a protruding window sill, we recommend starting your measurement two inches below the sill for maximum coverage and then measure three inches beyond the top of the window opening to accommodate for mounting hardware.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside Roman shades, your product will be made to the exact specified size.

How to Measure for Plantation Shutters

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 windows.

Blinds.ca knows that the perfect fit for a beautiful new window treatment all starts with an accurate measurement. If you’re planning a DIY window treatment project, our How to Measure for Plantation Shutters guide makes measuring easy!

You can also call our Customer Experience Center for an immediate quote once you have your measurements. Don’t forget you can always Find a Pro in your area to complete the project for you!

Get Professional Assistance

We have professionals waiting to help you with both measuring and installation. Call us at 866-551-3166 to find a local professional.


What You Will Need

Helpful Hints Before You Begin Measuring for Plantation Shutters:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure down to the nearest 1/8 inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they may look alike.

How to Measure for Inside Mount Plantation Shutters

How to Measure for Inside Mount

Inside mount plantation shutters are installed inside the window frame or casing – they provide a sleek, clean look which can showcase your window size and moldings. If you’re interested in measuring for inside mount plantation shutters, follow these steps:

  1. Measure the depth of your window frame. You’ll need this measurement to ensure your window recess meets the minimum depth requirement for an inside mount. Refer to the Mounting Requirements section for the window treatment you’ve chosen to ensure your window meets the requirement for an inside mount.
  2. Check the window for squareness by measuring the diagonal points of the window, or by using a panel and placing it against all four corners. If the window is out of square by more than 1/4 inch, an outside mount application is recommended.
  3. Measure the width of each window opening. Record the width at the top, middle and bottom of your window opening. Circle the narrowest measurement of the three – this is the number you submit for your window’s width.
  4. Measure the height of your window opening in three places: left, center and right. Circle the shortest measurement – this is the number you submit for your window’s height.
  5. If the opening measures 60 inches or higher, a divider rail is required. For inside mounts, measure from the bottom of the window up to where the center of the divider rail will be located. Note that the divider rail will be positioned within 1.5 inches of this measurement.
  6. Order at the exact opening size with no deductions. The factory will take deductions when making your product.
  7. Double check that your measurements follow the width by height format (W x H).

How to Measure for Outside Mount Plantation Shutters

How to Measure for Outside Mount

Outside mount plantation shutters are mounted on the window molding or wall around your window. Outside mount shutters are a good choice if an inside mount is not possible due to window depth or obstructions within your window. Follow these simple steps to measure your windows for outside mount plantation shutters:

  1. Check the mounting requirements on your plantation shutters to ensure you have enough flat surface for mounting hardware.
  2. Determine the width of the plantation shutters you want to order. We do not advise mounting directly on the wall.  If you have window trim, take trim-to-trim measurements.
  3. If your window has no trim, we recommend adding width of your choice on each side of your window to provide light gap coverage and privacy. Mark these additions on each side and measure the width between them in a straight line.
  4. Determine the height of the shutters you will order. If you have a protruding window sill and are mounting into the wall above, start at the sill and measure the height of your choice beyond the top of the window opening to accommodate for the frame. If mounting to the trim, order from the top of the trim down to the sill.
  5. If you do not have a protruding window sill, we recommend adding frame size to the top and bottom of the window opening. Start by measuring the depth of the frame of your choice below the sill for maximum coverage and then measure the depth of the frame of your choice beyond the top of the window opening to accommodate for the frame.
  6. Double check that your measurements follow the width by height format (W x H). Remember, with outside mount plantation shutters, your product will be made to the exact specified size.

How to Measure 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 866-551-3166 and one of our design experts will help you get the right measurements!

Helpful Hints Before You Begin Measuring for Arches:

  • For the most accurate measurements, only use a steel tape measure.
  • Don’t mix up width and height measurements. Always follow the width by height format (W x H) and mark them as such.
  • Measure to the nearest 1/8 inch. Never round up or down to the nearest half or whole inch.
  • If you’re measuring for more than one window, measure each one individually – never assume that your windows are the same size, even if they look alike.
  • For cellular (honeycomb) 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.

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 866-551-3166 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

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

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)

Eyebrow 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, Non-Perfect, Elongated)

Quarter Arch (Perfect, Non-Perfect, Elongated)

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 866-551-3166 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.
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