180gal bottom glass help

[brianblack]

Anyone know what the glass specs are for the bottom of a 180 like I am sure it is tempered and 72x24 or so but how thick??? I was guessing 3/8. Found a tank for cheap (haven't seen it) but needs the bottom replaced just wondering what to price out at the glass shop.
Thanks

 

[Krish]

Is it an All-glass tank? I think Martin (Finn) has a 180gal. He may have an idea

 

[brianblack]

I do not know if it is an 'all glass' but is made out of glass not acrylic. Would be cooler than a 125 for sure.