common outdoor composite lumber floor span

Deck Joist Spacing and Span Chart - DecksDirect

The majority of composite deck board brands including and more require deck joists spacing to be at 16 inches O.C. (on center) for standard straight composite decking installation. Composite decking brands also generally require 12 inches O.C.joist spacing for 45-degree or angled composite deck board applications.【Get Price】

Composite Slabs and Beams using Steel Decking: Best Practice.

Composite construction is considerably stiffer and stronger than many other floor systems so the weight and size of the primary structure can be reduced. Consequently foundation sizes can also be reduced. Saving in transport Decking is light and is delivered in pre-cut lengths that are tightly packed into bundles.【Get Price】

Span Tables - Calculate Joist Rafter and Wood Beam Spans

Rafter and Joist Span FAQ The lengths and sizes of joists vary depending on the species and quality of the lumber used. For example you can span a #1 grade (no knots) southern yellow pine a greater distance than a #2 grade (with knots) southern yellow pine.【Get Price】

Newcastle’s Composite Timber Decking Specialists

There’s a common misconception that the thicker boards can span 600mm span centres for joists. Unless it’s specified or signed off by an engineer that isn’t the case. There is a hardwood species (check it out here in this blog post) the Boral 600 NSW spotted Gum series which does suit this application and has been signed off by an engineer.【Get Price】


SIZE OF JOISTS (mm) CLEAR SPAN C16 JOIST (M) CLEAR SPAN C24 JOIST (M) 47 X 95 47 X 120 47 X 145 47 X 170 47 X 195 47 X 220 1.77 2.40 2.89 3.38 3.87 4.36 2.04 2.75 3.47 4.20 4.93 5.66 FLOOR JOISTS FLAT ROOF JOISTS Assumptions at 400mm Centers - Supporting permanent load (excluding self-weight of joists) up to 50kg/m2. - Supporting imposed load.【Get Price】

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