Matt.... the thing is squared. That was the FIRST thing I did was get a tape measure and measured corner to corner, etc. I kind of wish the frame wasn't in primer to see if there were any cracks because I saw some little dips or pits in the metal so scraped some primer off and looked at the pit marks and there was no rust since it was sandblasted but could tell it started to rust. No big deal and not major at all though. I will check that site out though Matt, thanks. I would rather have it on my firewall though but we'll see what other replies I get first.