Dimensions will be rounded to the nearest 1/8"3 mm1/8" (3 mm).
Enter dimensions in the boxes, then click the “Show Prices” button.
This shape is an Equilateral Trapezoid. The Back and Front are parallel, and the left and right sides are of equal length. If your cushion more closely resembles one of the similar shapes below, please click on it to use that shape instead:
Toppers & Pillows
The Foam Store of Marin
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Foam and Your Health