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.
Pressure treated wood for deck joists.
6x6s for support posts and plywood.
2x8s 2x10s and 2x12s for joists stair stringers and beams.
The wide majority of decks and deck frames built in the united states feature pressure treated lumber as the deck framing material.
If a cosmetic issue remove the plank flip and refasten.
Pressure treated lumber can support more weight and span longer distances than cedar redwood or other woods commonly used for building decks.
He sees it all the time.
How far apart should deck joists be spaced.
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.
The maximum joist spacing you can use will depend on the size and allowable span of your.
Deck joists rotting from the top edge down because the deck boards and debris keep them damp for weeks after rain.
Until a few years ago the irc didn t have deck joist span tables.
5 4x6s and 2x6s for decking.
Make any wood replacements with a similar type of pressure treated lumber.
Deck joists are typically spaced either every 12 inches or 16 inches on center.
This guide will teach you to safely repair any deck or joist.
The joists were pressure treated lumber so i was surprised at how badly decayed they were.
Decks get wet and may be framed with incised treated lumber so spans may have to be adjusted.
The predominant species of treated wood is a regionally available softwood.
It s also much less expensive.
Species sizes of pressure treated wood.