FAIRFIELD Soft Support Foam is a polyurethane upholstery foam intended for projects where density and support are important. This pre-cut tuffet measures 18 x 18 x 6 in (45.7 x 45.7 x 15.2 cm), sized for DIY ottomans, footstools, and pouf-style seating updates. Pair it with cushion wrap and a suitable cover and base, and keep the foam away from heat sources as you would with standard upholstery materials.