The best foundation for a long-lasting deck. The substructure of a deck is crucial for its stability and longevity.
A TimberTech Aluminum Frame means a beautiful, incredibly flat deck with superior performance for years to come.
"Kiln Dried After Treatment" Framing
It gives you the long-lasting benefits you expect and outperforms other framing materials.
KDAT lumber that’s pressure‑treated, then dried and planed for precise, consistent dimensions.
Stays flatter, straighter, and more stable than standard treated wood, reducing movement, shrinkage, and surface cracking.
Ideal for composite decking, offering a premium, moisture‑controlled foundation that performs better and lasts longer than regular lumber.
The controlled drying process minimizes internal stress, which means fewer splits, checks, and surface cracks over time compared to standard treated lumber.
With the shrinkage and movement already completed before it reaches the jobsite, KDAT delivers a more consistent, reliable framing system that stays true as the deck ages.