Capped versus uncapped
Capped boards have a protective outer layer; some products cap different numbers of sides. Older or uncapped products can have different care needs. Confirm the exact collection and do not assume all existing composite boards behave like current capped products.
Profiles and patterns
Solid, scalloped and hollow-core profiles are not interchangeable. Square-edge and grooved-edge boards can use different fastening methods. Picture-frame borders, breaker boards and diagonal layouts should be planned with the support details.
A practical selection process
Compare full-size samples outdoors and ask the installer for the product’s instructions and warranty. Test your preferred colors against the siding, railings and furniture. Keep a record of the exact product and color so future repairs and cleaning are easier.
Questions worth asking
Can composite go over existing wood boards?
Do not assume that is an acceptable assembly. Follow the selected manufacturer’s installation requirements and have the structure assessed.
Does composite stop algae from growing?
Debris and moisture can leave any outdoor surface needing cleaning. Use the approved cleaning routine for your exact decking.
Go to the source
Official resources and manufacturer guidance used for this guide. Confirm current requirements for your project and exact product.
TimberTech composite overviewTimberTech maintenance guide