Treated Pine Deck Joists
The table includes spans for.
Treated pine deck joists. The deck is 10 meters long and 4 2 meters wide. Please see an example of 450mm joist spacing below with your joist spacing determined you can use the 450mm column to determine what size timber you will need for your joists. 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. Use pressure treated lumber when you install the joists.
The images provided show our home prior to and after i fitted this deck. The sub floor joists and bearers are treated pine. Decks get wet and may be framed with incised treated lumber so spans may have to be adjusted. We do use 400mm spacings with clear treated pine as it is slightly more flexible than our other decking materials.
For best results refer to our wood and composite deck joist span table. It has a much higher resistance to moisture than ordinary lumber even more than rot resistant types like redwood and cedar. 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. Until a few years ago the irc didn t have deck joist span tables.
All materials were new from bunnings nerang.