Tank measurement questions

[seedub]

I'm about to start building my sump using a standard 29g. Does anyone know off hand the exact measurement from inside front glass to inside back glass? I'm going to my buddies glass shop and I need EXACT measurements. My trusty tape measure just won't cut it. I guess I'm hoping someone has the info I need. THANKS!

 

[gfk]

if nobody knows, id suggest taking the tank with you, so they can measure and cut while youre there...

wheres your buddies glass shop? i need to cut some glass for my diy sump as well

 

[seedub]

Well, it's an auto glass shop, and he's doing me a favor. The pieces will be ordered to fit, so I need measurements before.

 

[gfk]

if nobody answers, the only thing i can think to do, is cut some kind of card stalk or cardboard, and keep trimming it til its an exact fit