Deck Framing for Coastal & Humid Climates
Along the Gulf and the coast, decks face heat, humidity, heavy rain and salt air every day. That is hardest on the part you cannot see: the frame. VORO is the ideal framing material for coastal environments.
What humidity and salt do to a deck frame
Treated lumber absorbs water. In humid climates, water trapped on top of joists, at fastener holes and where boards meet the frame can lead to rot well before the deck boards wear out. Near saltwater, hangers, fasteners and other metal parts corrode faster, and metal framing depends on its protective coating staying intact.
How VORO was tested
- Water absorption: 0.6% maximum in 24 hours.
- Tested exposures: brine and saltwater, chlorine, and sodium hypochlorite (bleach).
- No wood fiber for rot or termites, and no steel in the member to rust.
- Heat: the VORO span tables let you choose a design temperature, so spans account for hot decks in the sun.
Build it right
A long-life frame is only as good as its connections. In coastal and humid areas, use fasteners and hardware rated for the exposure, and keep water from being trapped in the structure. For marine, dock or pool projects, contact us so we can review your application, and confirm your design with your building official.
More guides: Deck Framing Options Compared · Fiberglass Deck Joists, Explained · Become a VORO Dealer · VORO Installation Basics
This guide is general information, not engineering advice or a warranty. Product values are typical results from manufacturer testing. Structural work should be designed or reviewed by a licensed professional and must meet local building codes.