Capped Composite Decking: What Is It?
Currently the king of the hill among high-end deck builders, capped composites are popular because they mimic the look of wood but require almost no maintenance. Capped composite deck boards are composed of a traditional composite wood / plastic core with a durable polymer protective shell. They come in a range of quality and price, so you’ll need to do some research to get the best deal. The advantage of capped composite decking is the PVC coating prevents mold and mildew from feeding on the organic fiber found in composite material.
Look for Durability
Some capped composites have a thick, hard shell that will hold up to heavy abuse, while others are less satisfactory. A reliable product should have a 25-year warranty against things like warping, stains, swelling, and fading. (You cannot expect a warranty against scratching, because no product can hold up against severe scratches.)
Good & Better
Many companies have two or more models of capped composites, to suit different budgets and tastes. At the low end, boards may be monocolored (though with a choice of 4 or 5 different colors) with an embossed wood grain. Mid-priced boards may have two or three colors to look more like wood. And top-end boards will have sophisticated patterns that use multiple colors; the patterns may repeat so seldom that you would have a difficult time seeing any repeats. Durability and fade resistance may be the same for all three levels, or the higher-end boards may be better quality.
Composite Cores
Capped boards with composite cores are more environmentally friendly because they are mostly made of recycled products. The ratio of plastic to wood flour is usually about 50/50.
Check out the capped composite decking options on Trex to learn more.
Composite vs Wood
We break down the pros and cons of composite and wood decking to help you pick the best fit for your backyard build.
Waterproof Decking Materials & Options
Did you know you can ensure the space under your deck stays dry, or even waterproof your decking boards? Explore all waterproof decking options at Decks.com.
Deck Screws vs Wood Screws
Your guide to understanding the differences between wood deck screws and composite deck screws.
Cutting a Concrete Pad
Learn how to use a concrete saw to cut a hole in a patio slab to install a deck footing.
Digging Foundations
Learn how to hand dig or mechanically dig your deck footings with step-by-step instructions. Learn what to do if you hit a rock.
Can I use pier blocks?
Our inspector explains the pros and cons of using pier blocks for deck foundations.
More Helpful Resources
Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
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An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights
Is Trex Decking Worth the Investment? Expert Insights and Reviews
Discover why Trex decking is worth the investment. Learn about its durability, low maintenance, eco-friendliness, and the long-term value it adds to your home.
How to Read Lumber Grade Stamping
Any lumber you purchase should have a grade stamp, which provides info about the characteristics of the wood. Learn how to read lumber stamps at Decks.com.
Different Types of Joist Hangers
You can use joist hangers to strengthen your deck. Learn more about the different types of joist hangers for you to use on your decking project at Decks.com
How many footings do I need?
Avoid a wobbly deck! Learn how to calculate the right number of footings to keep your structure safe and solid.
Deck Footing Depth
Find out how deep you need to dig your footings in your area. Look at our U.S. map of extreme frost penetration.
Monolithic Pier
Compare the pros and cons of installing a solid concrete deck footing using a cardboard tube or engineered forms.
Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
Stairs
An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights