Capped Composite or Polymer Decking

Jul 1, 2019 | deck builder

Capped Composite or Capped Polymer Decking

For your new deck project, you’ve decided that installing a traditional pressure treated wood deck is not for you. Instead, you have decided to enjoy the low-maintenance living of a capped composite or capped polymer decking (PVC). Great choice! This article is for you.

The two most popular low-maintenance decking products on the market today are capped composite or capped polymer decking PVC. Low-maintenance living, vast color and texture options, along with impressive fade and stain resistance warranties, make these new materials tough to beat in comparison to pressure treated wood. For your informed decisions on which low-maintenance decking to choose, we have investigated the science behind these two most popular options for you!

Capped Composite Decking

Capped Composite Decking

(TimberTech Pro Pecan capped composite decking and Kona composite rail, in Ijamsville, MD)

Capped composite decking, such as TimberTech Pro, have a semi-organic core comprised of a precise balance of wood fibers, recycled plastics, and other materials. The core of the TimberTech Pro composite deck board is then capped on all four sides with a proprietary protective encasement with ‘Mold Guard Technology’ with no wood fibers to prevent water absorption. The wood fibers in the core make composite deck boards strong! With composite deck boards, you will experience less expansion and contraction than PVC decking, which means those precisely cut corners will stay closer together over time. The leading capped composite decking manufacturer in the industry, TimberTech Pro, boasts an impressive 30-year fade and stain warranty! One of the many reasons we truly love TimberTech Pro decking is they use 100% recycled materials to comprise the core of their decking, making this a great option for going with a technologically impressive and environmentally friendly selection!

Capped Polymer Decking

Capped Polymer Decking

(TimberTech Azek Mahogany decking, Keylink aluminum rail, with white PVC trim)


Capped polymer (PVC) decking is the top non-organic low-maintenance decking choice on the market. These boards are exceptionally resistant to wood-boring insects, color fading, staining, scratches, mold, and mildew. Mostly because this material is completely made of polymers, giving little opportunity for bugs and other environmental issues to affect this decking. Because of these advantages, many consider PVC decking to be the ‘Gold Standard’ of low-maintenance manufactured deck boards. The warranty reflects this too with TimberTech AZEK’s capped polymer decking warranty at an astounding 50-year fade and stain warranty.

Capped polymer and capped composites continue to gain market share and popularity! With all their attributes it’s easy to see why. When you are ready to begin your new outdoor living space, call Cedarbrook for a free consultation. Our design experts can even bring samples of both capped polymer and capped composite decking options! Call 301-703-8728 for your free consultation.

Talk to the Pro Deck Builders

The finished porch project absolutely far exceeded our expectations. We agree the quality and craftsmanship would be hard to beat and we have never seen anything like it in quality and design. We keep bragging about Cedarbrook to everyone. So appreciate everyone's hard work follow-up, and professionalism. We definitely will be using you all for future projects and recommending you to all our friends.

Carlos Motta, Union Bridge