thanks for putting it up, which is what I was talking about, I supposed there is no absolute rules or number when calculating the lenght and witdh allowed for certain glass thickness, even here on my area, most tank builder would use estimation and previous experiences when making a tank. I will also look for stronger bracing on the bottom. I'll post pics later on when I begin the project."Man! I know that already, I hope u understand the entire question from the begining. I could get away with 60cm of height by using 12mm glass, but my question was whether I still can get away with 3 meters long and 1 meters wide by using 12mm thick glass."
Its a bit complicated, as I understand, but basically the height of the water determines the pressure at the base. This is the same regardless of the width and length.
However the greater the width of the tank the greater the force, which should amount to the same pressure per area...
Unfortunately the longer length of the face of the glass the more it will bend and funnily enough the words bend and glass shouldn’t be used in the same sentence...
Other than that with bracing the 12mm will be fine until it is met with a force outside its safety factor.
Hope that clears it all up.
cheers
