The decking recieved 5 coats of cabots deck oil both top and bottom.
Treated pine deck joists.
We do use 400mm spacings with clear treated pine as it is slightly more flexible than our other decking materials.
It has a much higher resistance to moisture than ordinary lumber even more than rot resistant types like redwood and cedar.
The table includes spans for.
The decking is 90 mm wide and 22 mm deep.
Use pressure treated lumber when you install the 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.
The larger the deck the larger the joists.
The images provided show our home prior to and after i fitted this deck.
For best results refer to our wood and composite deck joist span table.
The sub floor joists and bearers are treated pine.
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.
Decks get wet and may be framed with incised treated lumber so spans may have to be adjusted.
All materials were new from bunnings nerang.