The cushion under your carpet is one of the most important considerations when buying new carpet.

It is the base that helps the carpet retain its texture and appearance.

A cushion is sold by its thickness and density.

A pad that is too soft will adversely affect the performance of the carpet, and a pad that is too thick interferes with the anchoring of the carpet.

For residential installation, a cushion of no more than 7/16-inch thick and no less than 1/4-inch thick with a 6 pound per cubic foot of density or equivalent is recommended. (A cushion of 3/8-inch thickness with a 6 pound per cubic foot of density or equivalent is recommended for berber style carpets.)