TREX Clam Shell

Trex Clam Shell decking offers a durable, low-maintenance solution for homeowners looking for long-lasting performance. With its deep, calming gray tone, Clam Shell provides a modern yet classic appearance, perfect for any outdoor space.

Made from 95% recycled materials, this composite decking is resistant to fading, staining, and mold, ensuring your deck maintains its beauty for years to come. The scalloped profile makes it lightweight and easy to handle during installation while maintaining strength and stability.

Backed by Trex’s 25-year limited warranty, Trex Enhance Clam Shell is an ideal choice for eco-conscious homeowners seeking affordability and quality.

1” Grooved Edge Board - available in 8' *, 12', 16' and 20' lengths.

Grooved edge boards designed for use with hidden deck fasteners for a smooth, fastener-free surface.

1” Square Edge Board - available in 8' *, 16' and 20' lengths.

Square edge boards designed for surface fastening. Use for stair treads and for picture framing.

* 8' boards option is a Shipping-Optimized Version; Can be safely loaded onto or unloaded from a tailgate delivery truck for long-distance deliveries outside DeckMart's local delivery radius — offering a much more cost-effective option compared to deliveries arranged via flatbed trucks. Sold in pairs only.

Fascia Boards are available at 12' length.

Riser boards create the back portion of stairs. They are installed at a 90° angle to the stair itself.

Fascia boards are trim boards used to finish the sides of a deck.