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.
1 A capped composite deck can cost $20-28 per square foot. 2  Cedar or redwood-Cedar or redwood are good mid-range options in that they cost less than tropical hardwoods or composite, yet last 15 to 20 years. Composite railing ranges from $15-$30 per linear foot before installation costs. 2  Cable rail-Cable rail is a wonderful solution for properties with a view. 3  The slender metal cables run horizontally, and take up so little visual space that you can see the trees, mountains, or ocean beyond.