hot 883...I was also thinking that drywall will probably not do well...my sump for my 200 gall fowlr is on the floor against the wall now and there is some serious damage, even though I put a plexiglass sheet up against the wall... Its going to have to be plywood. Now I had a thought. I was all excited to go ahead and just build the stand...then I said, wait a minute, before I build this stand let me be sure I can even drill this tank...so I've been busy learning how everyone has been drilling their glass tanks...I practiced on some picture frame glass tonight and the dremel method seems to work very well. So I thing first, I will drill the tank and be sure I can before I go ahead and make the stand.