Conservative choice for in service wood grade?
Conservative choice for in service wood grade?
(OP)
A colleague of mine is looking to place a heavy load on the wood floor of his 1880s house. The floor joist size is 2"x8" (not nominal) and he believes it is some sort of Pine. I'm conservatively selecting the weakest Pine species from the 2005 NDS manual (if the building is in Chicago, I'm doubtful it's southern Pine). The trouble I'm having is selecting the appropriate grade, as this will have a large impact on capacity. For a home of this age, what is a reasonable choice of grade?






RE: Conservative choice for in service wood grade?
RE: Conservative choice for in service wood grade?
Mike McCann, PE, SE (WA)
RE: Conservative choice for in service wood grade?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.