Decking and Porches: Posts, Accents and Railings Pressure Treated Wood Deck Posts; Composite Deck Posts; All Deck Balusters. Pressure Treated Wood Deck Balusters; . All Decking & Porches. Cable Railing. Composite Deck Boards. Deck Accents. Deck Balusters . For materials, always use pressure-treated lumber, pressure-treated decking or treated deck components for any outdoor project. Then .