Is some 'authority' out there certifying Doug Fir timbers (5"+) as select structural?
Do you know a simple rule of thumb to further adjust the select structural values for Fb & E down to no.2?
It comes down to whether you know what you are getting. I use select structural with some clients since I know that is what will be used, and with others I use something less. We also specify what to use on the drawings so that we get what we are using in design.
Hope that helps
