Patio vs Deck - Pros, Cons, Comparisons and Costs - Fixr.com.26 Jul 2017 . The wood used for the deck flooring is often pressure-treated pine or cedar. A potential hazard is that wood can become slippery when wet, and ice can easily form in winter. Patios are generally constructed of concrete, stone, pavers, or other hard materials. Direct sunlight, especially if your patio is made of.