Join Date: Oct 2012
Location: Murrells Inlet, SC
FWIW, I've been using one as a stand for many years now. It started out holding an 18 gallon nano reef tank, and has since been holding one of my dart frog vivariums. I'll soon be using it for a 33 gallon freshwater planted tank.
It is most definitely made out of fiberboard, but it is extremely solid and sturdy thanks to the crossmembers. It could easily hold 250 lbs of weight or more in my opinion. Just be careful to not spill much on it.
Also FWIW, the 29 lb weight limit is for the shelves themselves. It can hold much much more weight on top.