Cut to Size High Density Upholstery Recon Reconstituted - Etsy
3/16 Black Ultra Board in Popular Cut Sizes -ccut-316BUB-SP
Amazon.com: Foamma 1" x 24" x 84" High Density Upholstery Foam Padding, Thick-Custom Pillow, Chair, and Couch Cushion Replacement Foam, Craft Foam Upholstery Supplies, Foam Pad for Cushions and Seat Repair :
Custom Foam - Stainless Steel Marine
FoamTouch COLLECTION Upholstery foam cut to any size -Polyurethane foam cushions seat pads high density foam Cushion, Replacement – FOAMTOUCH
High Density Foam - What it is & Where to Buy it - Foam Direct