1" High Density Foam Pad: HH Perkins' 1" High-Density Foam Pad measures 20" x 20" and has a thickness of one inch. Foam Pads can easily be cut to fit the size your project requires. Used to fill space for Shaker Tape, Splint, & Binder Cane. 1" Foam Pads are used in upholstery, seat cushions, Shaker Tape weaving, and craft projects. Foam Pads are very versatile. They can be used in any project you see fit.