A good quality carpet cushion is a wise investment. It adds considerably to the beauty, comfort and durability of your carpet. Often, cushion will be included in the price of the carpet. Ask to see what other options are available. Carpet and cushion provide a system that enhances the performance that you can expect. A low-grade, low-density cushion just doesn’t support carpet very well. If it doesn’t provide adequate support, the carpet could wear out prematurely. A cushion that is too thick or too soft can actually reduce the life of your carpet or cause difficulty walking across it. In general, a thinner (no more than 7/16″), denser pad will prevent undue wear on the carpet.
Cushion is described at retail in terms of pounds, e.g., 4 lb., 6 lb., 8 lb., etc. The term ‘pounds’ here refers to pounds per cubic foot.
Rooms subject to heavy wear will require a dense pad that is less susceptible to break down over time, while rooms with lighter use can get by with something less dense.
Carpet construction affects the choice of proper cushion. A looped carpet needs a dense and firm underlayment while a cut pile construction can utilize something a bit more luxurious.