6mm (1/4") - 3.15 lbs. per square foot 10mm (3/8") - 5.12 lbs per square foot 12 mm (1/2") -6.31 lbs per square foot
About 75 lbs
Glass weighs 162 pounds per cubic foot. Tempering adds no weight. Glass is glass, except specialty glasses like high temperature glass, which weighs slightly more.
A three month old quarter horse should weigh average of 200 to 250
It depends on the glass type, but for general purposes it is about 19.8 kilograms per square meter
6mm glass weighs 16 kg/m2 or 3.27 lbs per square foot