The cushioning consist of three elements: tape, board and elastomers. Elastomers are nothing more than shock absorbers.
They are position under the structure and give better cushioning for the angle of work if instead they are positioned above the structure the carpet seems lower, more compact, less imposing and slightly more rigid, it is a less flexible cushioning more “dry”.
The difference between light people and heavy people on treadmills may be explained by the following factors: the type of elastomer (or other material) used in the elastomeric system, the width of the board, and the type of board used.
Carpet construction consists of a base layer, the actual product and a cover. The base layer is a thick, usually carpet backing that forms the foundation of the product. It is usually made from polypropylene, polyester, nylon, polyethylene or polyurethane.
The carpet itself is usually made from a blend of synthetic fibres like nylon and polypropylene. The cover is a thin, usually textile material that covers the top of the product.
This textile material can be woven, knitted or non-woven. The base layer should have enough strength to carry the weight of the product.
This is important because the product will usually be rolled up into a cylindrical shape for shipping and storage. If the base layer is too weak it can crack when it is rolled.