We do custom cut orders, please message us for more details. If you don't want a cushion that's hard as a rock or a mattress that sinks when you sit on it, you have to check the compression or ILD number. Compression means the number of pounds necessary to compress a piece of foam 25% and still bounce back to the original thickness. For example, a 4" thick piece of foam that requires 35 lbs. to pack it down 1" and have it return to its full 4" thickness has a 35 lb. compression rating or ILD -Indention Load Deflection. Uses : Ideal for oval and round poker tables, furniture cushions, boat cushions, car cushions, foam mattresses, bedding support, and all other home and commercial upholstery applications. DO NOT OPEN WITH A BOX CUTTER! USE A BALL POINT PEN OR A PENCIL. START BY MAKING A LITTLE INCISION AND BREAK IT FROM THERE. Foam can be cut to the size that you need with a sharp carving knife or electric knife. Durability : Will Last 7 to 10 Years.