@Anon112 We avoided having to join adjacent pieces of HWC.
My wonderful son-in-law built the run, and I designed it on the run. It’s 8x15, and so there are three 4’ wide sections front to back (total of 12’) and one 3’ wide section, where the door is (to add up to 15’.) I bought 48” (4’) wide HWC, and we started one end in the back, rolled it up over the frame for the “ceiling”, stapling to the 2x4, and down the front. We did this on the three 4’ sections and used a 36” (3’) roll over the 3’ section (not including the front, which became the door.) The run is 7’ high, so back + top + front was 7’ + 8’ + 7’ = 22’, most of a 25’ roll.
* I’m waving my hands in the air, trying to describe this. I hope it works. *
So that was the 15’ back, top, and front. Since it was 8’ deep, that meant two sections of 48” (4’) HWC down each side.
Since the width of each roll matched up with a 2x4 bit of framing, the edges were just stapled onto a 2x4, and there was no need to join or weave, etc.
A minor exception: after we wrapped the sides and top in HWC, we added 36” (3’) HWC along the ground and side bottom (this is where we switched to fender washers). When we ran out of one piece, or needed to turn a corner, we just overlapped the pieces by 6” or so, anchoring with the landscape staples, which we were doing on the straight runs anyway.
The name of the game is to design as much as possible in multiples of 4’ and 8’ for maximum efficiency in lumber purchased and ease of assembly.