Originally Posted by csaag
QUES - is the wood at HD/Lowe's marked to show whether it's 'select structural' or 1/2/3 ?
It has to be, they can't take on the liability of selling lumber that does not have a stamp indicating its grade. Whether or not the employees there even know a enough about lumber stamps is another story.
I actually happened to check this out one day (I usually stay far away from the big box stores) and most of what I saw was "stud" grade. Yuck.
If you go to a lumber yard I bet they have someone that can look up the strength (in psi) for you and your application in the NDS (National Design Specification).