Every one of about 70 pieces of panel has to be trimmed one way, the other , or both. 2x3@21x28", 1x3@21x45", 2x9@24x34", 3x9@24x35", 2x3@21x48".
I have installed all the wall L -shaped from 10' sections, all main T -shaped sections from 12' or 8' sections, and all T -shaped from 4' sections, and now I'm ready to cut and install the actual panels. I have chosen Armstrong white 2' x 4' x 5/8" #916 Random Textured Fire Guard panels.
Since I had never done this before I may have done a couple things differently. I have already cut and have installed in place ALL hardware and NO panels, rather than possibly doing both at the same time as I went along. Secondly, instead of clicking the hardware between the standard 2' x 4' spacing I have either needed to cut all T -shaped 4' sections short because of the room size, or I have in one room cut them to three matching 3' lengths for a room 9' wide. So I do not have two blade type connection supports, one on each end. I have fashioned special ends - I didn't just cut them to length. I either have T -shaped 4' sections with one blade end support and one folded end connection support, or I have both ends folded
To make the folded support connections I cut the T -shaped 4' sections about 7/8" longer, and a height equal to either a main- T, or a height equal to the wall- L, using aviation snips to split and fold the sheet metal in both directions. Having never done this, I didn't just want a butt end cut square to length. Its all snug, I can place and orient each hardware, with panels in, for all time. It supports from the far edge, and I could probably install new- C light without supporting wires to anything other than the main T -spans I've done anyway. I can slide side to side, rotate and I guess I would have twisted if I needed to too to get the panels in with some coercing. I may even need to trim the folds with the snips if for more rotation. And I can remove or mis-align other hardware as I go, as long as I can get it back in. In the 3x9@24x35" room in the middle row; one end is locked with a blade and the other end of that piece is locked with the blade of another piece. All pieces in this room have one blade end and one folded end This is where just plain square cut to length ends may have been better. which brings me to my Q.
So now I have the entire grid built, and looking at the whole job I ask myself how do I get these panels in? I can almost "twist all the T- 's and just push panels up and in, without actually moving the T- grid". Or the 4 sides could move, or one on two sides, or swing it out form one corner, but since there are numerous panels I my get trapped. If I end up trapped can I just "twist all the T- 's and just push panels up and in, without actually moving the T- grid". IOW if I could use this method I could actually start in the middle, for example - I wouldn't. The immediate alternative is to start in a corner and cut each piece to match an opening and then start disassembling each 4-sided area in order, and be sure I always can, or get out of it, and possibly have to go back (all the way), and start again. I don't even want to start!! What/how do I do this? The directions don't tell me how to do this, he who knows please come forward, with spacing recommendations. TIA