Frame Perimeter Tolerance

[MetalJacket]

Let me start by saying I did search first so I know there is another thread here with a similar topic however since that thread was started prior to the new sizing rules I thought it would be better to just start a new one. My question is what is the tolerance on the frame perimeter at inspection? My team is making our frame 28"x28" - which is the max frame perimeter (we did it last year with no problem so that is not our concern). What we were wondering is if we were to powdercoat the frame, thus adding a few thousandths of an inch to each side, would that be a problem? I wouldn't think it would be but I wanted to see if any other teams had experience with this. Thanks,
Jesse