Decking AZEK Decking Products > Decking > AZEK Decking 16′ Azek/Tt Castle Gate Grooved Pvc Deck Board Grooved Decking, Requires Hidden Fastener System; 5/4 X 6 16' Azek/Tt Castle Gate Grooved Pvc Deck Board quantity Add to Quote SKU: ADCGG16 Category: AZEK Decking Related products 16′ Azek/Tt Slate Gray Solid Pvc Deck Board Add to Quote 16′ Azek/Tt Mahogany Solid Pvc Deck Board Add to Quote 16′ Azek/Tt Maritime Grey Solid Pvc Deck Board Add to Quote 12′ Azek/Tt Slate Gray Grooved Pvc Deck Oard Add to Quote