Have a bent frame. Looking for knowledge on the subject.

The main problem is if the frame is up or down on one side, your tape measure will not find that that's why I gave you an idea to try and hope you under stood it. The tape measure is a great idea but not going to tell you the whole story.
Im pretty sure I understood it. I read it early this morning and where not ready for that yet. Ill work on that this week. We planned on the measurements so we went with that. I still feel I'm missing information and am still pursuing more measurements before I start work on it. really appreciate it. thank you