I want to put doors to front of my carport, it is supported my 5in diameter metal poles, Need to build a wooden frame attached to the poles, with minimal damage or alterations, have the frame not be able to rotate around the poles when door, 8ft x 5 ft each, open and close. And in rear of carport 8ft x 7ft opening, I want to put a slide open door, what are good metal types to use for wheel bearings and track or pole that is good for outdoor weather resistant?
