This thread has a lot of great info. I too am going to be putting up a metal ceiling in about two weeks in my new garage/shop, about 1350 sqft of it. I got the Dura-Panel interior panels through Menards. Measured it out and had it custom cut based on the various shapes that make up my ceiling (divided into three main portions).
A number of the panels are 16' sections so I am thinking either a single drywall lift with some long pieces of angle to support the whole panel, or I can also get my hands on a second lift and use two lifts to support the bigger pieces at once.
Is it really necessary to pre-drill? Not that I don't want to do it right, but I would think that adds a lot of measure and prep time. The pole barn screws should be able to zip right through the stuff, and a 16' spacer block to line up the holes probably would make it go quick, no? I figure a lot of the adjustments to get everything to fit just right can be made by either increasing/decreasing overlap, or of course the trusty angle grinder w/ a straightedge to make rip and cross cuts to fine tune the fit.
One of the things I am struggling with is the junction boxes. I've got a couple ceiling outlets and a lot of circular light junction boxes to line up. It was mentioned already that pre-measuring sometimes doesn't yield the best of results. I was wondering about maybe using a piece of chalk to heavily mark up the edges of the junction box, put the panel into place, then bring it back down and there should be at least a faint-ish mark from the chalk exactly where the junction box is. Has anyone ever tried this type of approach? Maybe if the chalk doesn't make a good mark on the metal, some dykem dye? Just fishing for ideas.
As far as for cutting the holes for the electrical boxes, the round ones I was going to use the HVAC circular cutting tool for ducting, and of course aviation / tin snips. Fortunately even if the holes aren't perfect, they can be cut a touch oversized as the flourescent fixtures and outlet plates should cover gaps up.
Is there anything else I'm missing? I'm trying to get my ducks in a row here, get my J-channel installed and recruit a crew of 4-5 guys to get it all done in one Sunday. Am I crazy?
Thanks,
Adam