2x8 Deck Joist Span

The deck joist span chart below is based on the updated codes from the international residential code 2015 which for the first time specifically addressed these deck design considerations. Our house has 2x10 joists under the 1st floor 2x8s under the 2nd and 2x6s under the 3rd all rough sized. A 2x8 up to 12 feet.
2x8 deck joist span deck joist 2x8 span table joist deck beam joist 2x8 span chart

The span where the joists meet the staircase is approximately 13 ft and where.

The same wall runs perpendicular to the joists on all 3 floors but not the basement.

2x8 deck joist span. Get shopping advice from experts friends and the community. Im trying to figure out whether this is a load bearing wall. The spans of joists varies based upon several factors. Also available for the android os.

Span calculator for wood joists and rafters also available for the android os. The numbers in gray indicate the distance between the support posts. Deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck porch post beam connectors. The larger the deck the larger the joists.

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. But youll notice when you look at the portion of the span table for joists with cantilevers that the joist span for decks with a cantilever is often less than the span for the same sized joist without cantilevers. 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. Numbers in blue are joist spans beam to beam or house to beam.

Joist size spacing between joists decking material and wood species. A 2 2x10 can span 10 feet and so on. A double 2x12 beam can span 12 feet. Section r5075 notes that deck joists can cantilever up to 14 of the joist span.

2x10 to 15 feet and 2x12 to 18 feet. The irc deck joist span table serving north marin west sonoma counties in the san francisco north bay area of northern california this span table takes into account the joists are being used in exterior applications and how the wet conditions can reduce the strength of lumber so the maximum spans allowed are less than the above table that we currently use. Dimensional lumber deck beam span chart. The maximum joist spans below are based on a ground snow and live load of 40 pounds per square foot and a dead load of 10 pounds per square foot.

The proper deck joist span distance between supporting beams below the joists for your deck should be known before you start building and is needed to draft your deck plan.