Imo furniture grade = not aquarium grade
anything built of nice wood is gonna run over 1000$ if you buy furniture , cheaper furniture is made of low budget wood and wears easily especially when water and weight are concerned. If you build a stand be sure to use hardwoods and put a water protective sealant on it. The thing about building your own is you don't pay labour which is huge in quality furniture, it's designed around your tank and your house, it's structure is a good as you need it to be as most tanks are different. Alot of people go tile or stone or just plain wood. Either way build a cheap shell that's structured and "skin" it with what you like.
