#2 Pressure Treated Lumber
Alter Eagle Construction & Design
[This message has been edited by Altereagle (edited June 25, 2003).]
We treat both #1 and #2 Southern Yellow Pine at my plant. Since SYP makes up most of the pressure-treated lumber that's produced in the US, it's a good bet that BrianZ will be using SYP. That said, there is a distinct visual difference between the two, as well as a slight structural difference. There are less wane and knots allowed per SPIB grading rules in a #1 than there is in a #2. That alone is a big difference visually. #1 material is generally slightly stronger than #2, but I don't see any reason to go wild and use #1 material on the joists and ledger board on the deck. Additionally, your posts are generally going to be #2 if they are 6x6's, as #1 is very difficult to come by in SYP timbers.
Decking will be either PREM or STD, Premium being the equivalent of a #1, and STD a #2. I'm not a big fan of using 2x6 as decking. I'd rather go with a 5/4x6 radiused edge decking. And if it was my deck, I'd use premium decking. It's just a lot better than the standard.
I hope this helps Brian...
[This message has been edited by JayF (edited June 29, 2003).]
Here on the west coast we wouldn't even think of using a treated lumber as a finish, we use composites, redwood, cedar & some exotics like ipe (pronounced eepay)among many... but never a treated lumber.
Thanks for clearing that up, I recall using treated pine back east but haven't for so many years never thought of that as an application even!
Is it just less than a #2 that was made that day? I am looking at KDAT but most lumber yards say it's not worth stocking. Is that because they don't have any?
Treated lumber comes wet from the manufacturer. It's Southern Yellow Pine. As it drys out it does tend to warp as it dries. That's the nature of it. So you never want to leave it somewhere where it can dry out or it will warp. Once it is installed and fastened, it's not going to warp. So if you by treated SYP, you are going to want to use it right away..
I know this was old, but this is good to know.
Instead I’m using the pressure treated wood to be placed on dirt as it’s foundation..
Should I consider this, and if so, should I keep it sealed to preserve its life to prevent it from BB potentially rotting over time?