I made my stand out of sanded plywood. The base is 3/4" and the canopy is 1/2". I designed it so the tank sits directly on top of the plywood base that way the walls of the base carry all of the load. In other words the stand base is the same dimensions as the outside dimensions of the tank, plus 1/2". Then I trimmed it out with materials from big box hardware. Plywood is extremely strong. I've seen 300 gallon tank stands made completely out of plywood. This is a 90 gallon tank. I made it about 5 years ago for about $350. Comparable stands like this sell for $1200. at the lfs. I made an acrylic tray to line the bottom, large enough to hold the entire volume of my sump, best thing I could of done. Catches all drips, spills and accidental floods. (only had one) I wanted the back completely closed in to keep noise down, add strength and to have a place to mount stuff so I installed a small computer fan in the back of the base that runs 24/7/365 to exhaust humidity given off by the sump so it wouldn't degrade the wood. Painted it inside and out with 3 coats of sealer on the outside. Most stands you see people make start with 2x4's, I seen some even use 4x4's, (over kill) then skin it with plywood. With this design you don't need the 2x4's and it's way way lighter.