A. Comply with local building codes and best practices for deck framing construction. The substructure of your deck must be code compliant. 3.2 Installation. A. Install composite decking according to manufacturers instructions available at NyloDeck Composite Decking Guide Specification
LGS framing for decks is typically galvanized to the G90 standard 0.9 ounces of zinc coating per square foot of steel sheet . Deck builders and building officials occasionally react to this by asking why G90 is okay for framing, while G185 1.85 ounces of zinc per square foot is required for framing hardware.
Wooden decks will have a frame spacing measurement of either 24 or 16 inches. When replacing the existing boards with composite decking on a deck with 24-inch frame spacing, you will only need to add joists 12 inches on center between existing joists.
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