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Here are some quick tips and notes to remember:

  • Use a steel measuring tape
  • If you get a 1/16" or 1/32" increment for width, round down to the nearest 1/8"
  • If you get a 1/16" or 1/32" increment for height, round up to the nearest 1/8"
  • Always reference product specifications below for complete measuring instructions
  • Interested in measuring for your door? Watch Door Measure Video

Measuring Instructions

Honeycomb/cellular arches offer a modern style and increased energy efficiency. Get the right amount of light by choosing either light filtering or blackout fabrics.

  • Factory deductions and minimum depth requirements may vary based on feature options chosen when customizing your product. Always refer to the individual product's specifications for a more detailed overview of this information before placing your order.
Arches Minimum depth required for secure inside mount Minimum depth required for flush inside mount Flat surface required for outside mount Total Deduction
Premier Collection 1 1/4" 2 1/4" 1"
  • 3/16" off inside mount rail
  • +3/16" addition to outside mount rail
  • 3/8" off inside mount fabric

Instructions for Inside Mounted Traditional Arches

Depth Requirements

  • The first step is to confirm that your window is deep enough for an inside mount. The product’s minimum mounting surface requirements are under the "Specifications" tab on the product’s information page.

Measuring the width

Measure the width
  • Measure only the window opening
  • To determine the width, measure from left to right at the bottom of the arch.
  • Round down to the nearest 1/8” if you are receiving a measurement in 16ths or 32nds. (For example, if the smallest measurement is 24 9/16," round down to 24 1/2". If it's 24 3/8", no need to round down.)
  • This is the width you will use when ordering.

Measuring the height

Measure the height
  • Measure only the window opening.
  • To determine the height, divide your width in half and measure the height at that location
  • Round down to the nearest 1/8” if you are receiving a measurement in 16ths or 32nds.  (For example, if the smallest measurement is 24 9/16," round down to 24 1/2". If it's 24 3/8", no need to round down.)
  • This is the height you will use when ordering.

Please do not make your own deductions. We'll take care of that for you. This ensures that your product will be the perfect fit. If you feel you need to add width for better light coverage, order an outside mount instead. Please review the following deductions/additions we will use when making your order:

Instructions for Inside Mounted Quarter Arches

Measuring the width

Measure the width
  • Only measure inside the window opening
  • To determine the width, measure from left to right at the bottom of the quarter arch.
  • Round down to the nearest 1/8” if you are receiving a measurement in 16ths or 32nds.
  • Use this width measurement when ordering

Measuring the height

Measure the height
  • Measure only the window opening.
  • To determine the height, measure at the left or right side of your window (depending on whether it is a left or right facing quarter arch). This should be the tallest portion of your window.
  • Round down to the nearest 1/8” if you are receiving a measurement in 16ths or 32nds.
  • This is the height measurement you will use when ordering.

Instructions for Outside Mounted Traditional Arches

Since an outside mount covers the window opening and frame fully, there are additions you need to make to make sure the correct size is ordered. We will make your product to the measurements you give us, and we won’t make changes or additions.

Flat surface requirements

  • First decide where you want to mount the blind outside of the window frame. You need at least 1" of flat surface. You can mount it anywhere below the window opening, making sure to add to the height the lower you go. More specific information can be found under the "Specifications" tab on the product's information page.

Measuring the width

Measure the width
  • Measure only the window opening
  • To determine the width, measure from left to right at the bottom of the arch.
  • You’ll use that measurement and add the recommended minimum of 4 inches. For example, if the window opening is 32", it would be helpful to order 36". This will provide 2" of coverage on each side of the window for maximum privacy and light gap coverage.
  • You can order narrower or wider based on your application, but the above example is a typical addition.
  • This is the width you will use when ordering.

Measuring the height

Measure the height
  • Measure only the window opening.
  • To determine the height, divide your width in half and measure the height at that location.
  • Make a minimum addition to the size of 4". For example, if the window height is 32", it would be helpful to order 36" This will provide enough overlap for maximum privacy.
  • You can order taller or shorter based on your application, but the above example is a typical addition.
  • This is the height you will use when ordering.