Pressure Treated Deck Joists

How far apart should deck joists be spaced.
Pressure treated deck joists. Installing 2x10 pressure treated joists at 16 on center. Stress graded to a minimum of c16 strength standard this deck joist really is the ideal addition to your decking order providing a sturdy robust and long lasting base for your deck. Species sizes of pressure treated wood treated wood is generally available as dimensional stock in 2x4s 2x6s 4x4s and 2x2s for rail components. Use pressure treated lumber when you install the joists.
6x6s for support posts and plywood. Installing a simpson strong tie h2 5z hurricane tie for every joist to beam connection. But the 2015 irc included a new one table r507 5 that will make it easy for deck builders to spec a joist size for a given span and joist spacing. 2x8s 2x10s and 2x12s for joists stair stringers and beams.
Pressure treated lumber can support more weight and span longer distances than cedar redwood or other woods commonly used for building decks. The table includes spans for common lumber species used for deck framing like southern pine douglas fir hem fir redwood western cedar and other species. Until a few years ago the irc didn t have deck joist span tables. Take a few minutes occasionally to pull out the leaves twigs and other debris that gathers between deck boards especially where the decking crosses joists.
You can use a pneumatic palm nailer. It has a much higher resistance to moisture than ordinary lumber even more than rot resistant types like redwood and cedar. 5 4x6s and 2x6s for decking. 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.
The wide majority of decks and deck frames built in the united states feature pressure treated lumber as the deck framing material. Decks get wet and may be framed with incised treated lumber so spans may have to be adjusted. Be sure to install the joists crown side up. The predominant species of treated wood is a regionally available softwood.
If you re building a new deck cover the joists with rubbery adhesive backed flashing tape. Our 47mm x 150mm x 2400mm pressure treated deck joists have been treated green with tanalith e in order to give a 10 year guarantee against rot and fungal decay for longer life. Deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck porch post beam connectors. Pressure treated lumber is the logical choice for the structural part of your deck the posts joists beams and other members you normally don t see.