I am going to weld in the shop, and the area I designate will have OSB with sheets of 20 gauge steel over it. ( I picked up some from a guy that was going to scrap it, about 12 sheets of 4 x 8 and I nabbed it quickly , free for the hauling). They were used and removed from a building, they have a few holes in the corners,but I will make it work. I ended up buying him a few cool ones when i saw him downtown the next weekend. (it was the least i could do).