Calculating Pleats and Spaces

Use this simple arithmetic to customize do-it-yourself traverse window treatments with one- and two-way draws.

| September 2019

Photo from Adobe Stock/whyframeshot

To begin, answer these questions:

What type of hardware am I using?

  • Traverse rod
  • Decorative pole with rings (wood or metal)

How will it traverse?

  • Two-way draw from the center
  • One-way to the left or right only

Before you begin calculating pleats and spaces you will need to know the finished rod measurement, the size of the overlap master carrier (if using a traverse rod), and the projection of the hardware or “return.” Make copies of the calculations on the following pages to use as worksheets, filling out the information for your specific project.

The following list shows the average number of pleats per width of material, based on a curtain using two and a half times fullness. Use this as a guideline as you work on your calculations.



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