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The choice between Trex, a brand of composite decking, and PVC decking depends on your priorities regarding budget, appearance, and environmental impact. Both materials are durable and resistant to moisture and insects. Trex is often considered more eco-friendly because it contains recycled wood and plastic and is 25% recyclable, while PVC is fully synthetic and harder to recycle. Aesthetically, Trex is designed to look more like real wood, whereas PVC often has a glossier, more plastic-like finish. In terms of cost, Trex is typically less expensive than PVC.

The problems with composite decking include a high rate of expansion and contraction from temperature swings. This characteristic can cause boards to split, delaminate, or peel. In addition, significant movement can cause shrinking, warping, twisting, and bending. For this reason, you should minimize moisture and ensure proper airflow below your deck.

Your deck may look or feel fuzzy after pressure washing because the high-pressure spray tears some wood fibers as it removes the outer layer of dead and discolored wood. This fuzzy effect is a normal part of the pressure-washing process and will go away on its own in a few weeks. You can opt to spot-sand your deck if you’d like to remove it more quickly.

The best way to sand a deck is by cleaning it, sanding the boards and stairs with 60- or 80-grit sandpaper, and sanding the railings and posts with 80-grit sandpaper. You should sand in the direction of the wood grain to avoid damaging the timber. When sanding your deck, use medium pressure and aim for an even sand. Pressing too hard with a sander can damage decks, as most are softwoods.