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Timbertech Technical Info

Timbertech materials are capped composite so you can expect their deck boards to be more rigid than 100% PVC deck products.  At the same time, capped composite products are heavier and they can get fairly hot in direct sunlight.  If a hot decking surface is an issue for your backyard, we recommend installing a lighter color.

Allow small gaps when doing butt joints to allow for expansion and contraction.  Capped composite decking products will expand and contract more than wood. 

We recommend installing Timbertech decking on 12” o.c. when joists are at 90 degrees to the deck boards and at 8” o.c. when the decking is installed diagonally.

All technical information can be obtained on Timbertech website

Gapping Requirements For All TimberTech Planks

  • Side-to-side plank gapping must be minimum 3 mm (1/8”) to maximum 5 mm (3/16”).
  • Allow 5 mm (3/16”) minimum gap where the planking meets any adjoining structure or post.
  • Follow these butt joint gapping guidelines for all TimberTech planks:

Butt Joint Gapping Requirements

0C (32F) and below

0.5C(33F) to 23C (74F)

24C(75F) and above

5mm (3/16”) gap

3mm (1/8") gap

0.8mm (1/32”) gap

 

Standard Joist Spacing

90 degree angle

30 degree angle

45 degree angle

16”

14”

12”