New Tank!

[sphelps]

Diddo on the thickness issue, way too big for 6mm. The biggest tank you can make with 6mm is a 55 gallon which is 48 x 20 but that glass is always tempered for added strength. Personally unless it was really shallow, I wouldn't build anything longer than 36" with 6mm.

Also glass used in commercial or residential applications these days is usually always tempered for safety. Make sure this is not the case before wasting your time, you cannot cut tempered glass.

[toxic111]

it is not laminated glass, nor is it tempered. Finding tempered glass in the building industry is not that common, it is usually only used near doors or where it is low. Tempered glass would explode, not crack. I got this glass because of cracks from shipping, or pressure cracks on site. The very large piece was rejected because of staining.

As for the size, I have checked several calculator & build information, 6mm is fine for 18" tanks, even if it is 48" long. Height makes more difference than length. I would be water testing the tank for several days to check for any problems prior to setting up.

The glass is dual pane with an argon filled air space, that is why I need to seperate it.

[sphelps]

Just friendly advice man, but I wouldn't do those dimensions, any tank builder will tell you the same and no tank exists with those dimensions unless it's tempered, 16" is the tallest for that length. Also starphire is softer than standard and will bow more.