Fiberon Sanctuary Composite Deck Board vs TimberTech Prime+ Composite Deck Board

Both are capped composite boards with hidden-fastener grooves, so the real split is the cap and the warranty. Fiberon Sanctuary caps three sides with PermaTech and is sold as a value line; TimberTech Prime+ caps the top and edges and carries a 25-year warranty. Pick Sanctuary for a budget-conscious deck with a fire-rated option; pick Prime+ if you want a longer warranty and a proven brand behind the board.

• Choose the Fiberon Sanctuary if you want a capped composite board with a fire-rated version available and a three-sided cap at the value end of the market.
• Choose the TimberTech Prime+ if a 25-year manufacturer's warranty and a top-and-edge capped board matter more to you than the lowest entry point.