I'd reckon, that looks stout! I guess the new purchasing agent could keep his job, after a few licks with a rubber hose... That is, IF, he in fact didn't use the wrong lumber on your columns. What are you going to use for a ceiling? Are you going to span the bottom of your trusses? In the areas away from your hoist? Did you get a sworn statement from the company? Time to start thinking about interior decorating. I vote for vintage gas station... A giant full-size wall graphic of a 1930s street scene would be cool. Steve.