Engineered for use with commercial carpet, the Aladdin Endurance II Smart Step 40oz Cushion is a 100% post-industrial recycled carpet pad. It offers excellent comfort underfoot and provides support for the carpet which enhances longer life, while adding a luxurious feel to the carpet. It’s non allergenic, mold and mildew proof and prevents bacterial growth. Smart Step is exceedingly durable, lightweight and easy to install. It has a 40 oz weight per sq. yard, is approx. 0.42" thick, and has a density of 7.4 lbs. per cubic feet. Available in both 6' and 12' width.