Wood Deck Load Tables

Steel post cap connectors plywood post to beam cleats other connectors deck porch railings code requirements safety deck framing tables codes specifications questions answers about allowable spans for deck floor or porch framing.

Wood deck load tables. The american wood council has two handy online calculators that can handle a range of specifics. Deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck porch post beam connectors. This is usually about 40 psf. One shortcoming of the span tables in the international residential code and the american wood council s prescriptive residential wood deck construction guide dca 6 is that they re limited to decks with a live load of 40 psf and a dead load of 10 psf.

Together the design load would be 50 psf. This is usually about 10 psf. The larger the deck the larger the joists. Deck joist span calculator span tables don t cover your deck load requirements.

Live load is created by all the extras like furniture planters and people. Dead load is basically the load created by the weight of the deck itself. Span calculator for wood joists and rafters also available for the android os. Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans.

The species of lumber size of lumber and the load it carries. The span of a beam is dependent on a few variables. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Wood construction data 2.

That means they won t work for areas with heavier snow loads for decks with heavy decking materials like stone or in numerous other. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. These columns are subject to axial compressive loads and in some cases eccentric loads. Nominal three and four inch decking is especially well adapted for use.

For best results refer to our wood and composite deck joist span table. In typical deck construction with a ledger on one side of the joist and beam on the other the size of the joists is driven by the size of the deck and based on the general maximum spans mentioned above. Also available for the android os.