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.
First and foremost, the deck material and size of your future deck will play the largest roles. As you just saw above, the price for composite decks can range from $9,000 all the way up to $20,000. With average deck prices ranging from $7 to $10 per square foot, one can imagine how such a range develops.