Lakee911
I&C Engineer (mostly WWTP)
I'm getting ready to lay my new deck boards (5/4x6 radius edge decking) and they are marked as KD 19HT which I interpret to Kiln Dried to 19% and Heat Treated (to remove any potential pests, from my understanding). They are "Thompsonized" as well, so they already have some sort of sealer on them. They have been sitting stacked (without air gaps) outside in the rain for about a week now. Should I gap them or jam them together when I fasten them down? I was thinking of gapping them like 1/16 of an inch.
Also, should I fasten using two 3" inch screws per joist or three screws per joist?
Thanks,
Jason
Also, should I fasten using two 3" inch screws per joist or three screws per joist?
Thanks,
Jason