It was a long time ago, (37 years), but I took a short course with this stuff in AIT combat engineer training. I believe it was PIP, (pierced iron planking) and/or PSP (steel), PAP (aluminum). Three or four guys would line the tabs up so they would interlock while another would bang the end with a large hammer. Was a real pain to assemble but once down it was like a road.
Unless the ends could be fastened securely to one another, I am pretty sure the joints were staggered, like shingles on a roof, so the whole project became one piece; but what I remember the most was gettin really mad at the guy with the hammer - he would rush a bit, causing delay - and the vibration when the hammer struck.
I kept pretty comprehensive notes on this training - if I can find them (unlikely), will respond further. I know some people that may use this in construction jobs - will ask further of them...
Good luck -