According to the National Institutes of Health and many other sources, the stress response is caused. by hormones. Hormones are chemicals, produced by glands and carried through the bloodstream, that. affect the activities of organs in the body.
Composite Decking Costs. 1  Average: $35 per square foot. 2  For polythylene-based composite decking, the average cost per square foot is $7.82. 3  For polypropylene-based decking, the average cost is $8.68 per square foot.
But with the Trex Deck Cost Calculator, we've made it easier to estimate how much it costs to build a Trex deck. By factoring in the anticipated size of your project along with the estimated costs for material, you'll have a better idea of just how much it will cost to build a high-performance composite deck. To give you a general idea, the average material costs for a deck run about $12.12 per square foot.