Reply by Whiskers

I’ll 2nd the metal t-braces idea as well as suggest corner braces. You won’t need T-s on every shelf, just in the Middle would be good for that height. Than you can use shelf supports and make the shelves adjustable. I put those metal braces on anything I buy from the stores nowadays cause it is so shoddily made of pressboard with funky little metal cam systems, and I frankly don’t want it coming apart the first time I move it. A box of 20 T’s or 40 Corner braces can be bought right now on Amazon for about 50c each. Just got a box of each myself last week. That’s 50c per brace, not box.