Thanks for all your replies. AquaTools
I Found this link for glass thickness. It seems anything from 10 mm to 12 mm will suffice my dimension requirement. But Thats a Calculator with an arbitrary safety factor. Doesnt compare well with some experienced user who has worked with that dimension or something similar.
I could vary my width and height to a couple of inches if required but i have a L-corner wall which is 56"x22" (LxB) and i think a 48"x18"x24" (LxBxH) tank would be a perfect fit for that wall with a 3 ft high stand and a high canopy.
I was not too keen on Acrylic because I thought glass was probably cheaper. But now since you've mentioned it, I'll have a look into this too. How thick should the Acrylic sheet be?
I've got a carpenter to help me with the stand and the hood, and I'm open to buy a custom made tank from the market.
I've never come across a plywood tank with a glass front. Are those safe. Can you share a few links of such tanks?
And thanks for the warning about the wood canopy. May be i could find a hood design that'll have the front made of wood and the top of metal, because a wood canopy looks so brilliant.