High-density foam features the perfect amount of cushioning and stiffness, with a compression rate of 44 lbs. It is soft but still holds its firmness and support, allowing an individual to sit on it without compressing the foam too much. Compression, not density, is what determines the firmness of the foam. To avoid a cushion that is hard as a rock or a mattress that sinks when you sit on it, it is essential to check the compression or ILD (indentation load deflection) number. Compression refers to the number of pounds necessary to compress a piece of foam 25% and still have it bounce back to its original thickness. For example, a 4-inch thick piece of foam that requires 33 lbs. to pack it down 1 inch and return to its full 4-inch thickness has a 33 lb. compression rating or ILD.

All foam sheets are sold per sheet, not per yard. It is recommended to use a ball point pen or a pencil to open the packaging, rather than a box cutter, and to start by making a small incision and breaking it from there. The durability of high-density foam can last 7 to 10 years.

Medium-density foam is used for firmness yet a relaxable cushion. It has high-quality compression and material to keep it lasting for longer periods of time, even when subjected to harsh weight. Upholstery Foam Return Policy: There is a restocking fee of up to 50% if the item has been returned to the returns department, and shipping fees are non-refundable.

Uses for high-density and medium-density foam include oval and round poker tables, furniture cushions, boat cushions, car cushions, foam mattresses, and bedding support. The density is 1.8, with a 44 lb. compression, and a 100% recovery rate that lasts from 3 to 7 years. Contact the company for custom cut needs.

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