Designed to withstand the test of time, AZEK Building Products are high performance exterior products that have been engineered to last beautifully. Manufacturing premium, low maintenance, exterior building products including AZEK Trim, the #1 brand of trim; AZEK Deck, the #1 brand of stain resistant decking; AZEK Porch, AZEK Mouldings, AZEK Rail, and AZEK Pavers.