The weight of a finished piece of glazing can be found out using the following equation: Width x height x thickness x 2.5kg.
Example: Glazing Item 1 = 750mm x 1M at 4mm Thickness (0.75 x 1 x 4 x 2.5) = 7.5kg.
Example: Glazing Item 2 = 2.5M x 1.7M at 6mm Thickness (2.5 x 1.7 x 6 x 2.5) = 63.75kg.