build fish tank

[Greatsoccerman]

I'm planning on building a fish tank in a L shape. It will be six feet long on one side and four feet on the other. About 12 inches high and 24 inches wide. Can someone help me with figuring out how thick I need the glass?

 

[Greatsoccerman]

So it would be around 150 gallons

 

[keenfish]

i say no less than 12mm this is what branded tanks use but try 15mm if you can afford it better safe than sorry