Float Glass

float glass

Float glass is a type of glass that is produced by floating molten glass on a bed of molten metal, typically tin. The float glass process was invented in the 1950s by Sir Alastair Pilkington and has become the most common method used to produce sheet glass. Float glass is made by heating raw materials such as sand, soda ash, and limestone to temperatures above 600 degrees fahrenheit. The molten glass is then poured onto a bed of molten tin, which allows it to float freely. Once the glass has cooled and set, it is cut into desired sizes and shapes.


  1. Inexpensive
  2. Allows full light transmission and visibility
  3. Available in a variety of thicknesses
  4. Can be cut, drilled, and shaped to meet various needs


  1. Breaks more easily than toughened and laminated glass
  2. Can no longer be used in high traffic areas due to building regulations (AS1288)


Float glass is widely used in both residential and commercial applications as it is an inexpensive and durable option which can be easily drilled, cut, and shaped to meet various needs. It is commonly used for –

  • Windows and doors
  • Commercial and civil buildings
  • Furniture shelving and tabletops
  • Can be turned into other types of glass via additional processing eg. laminated glass or toughened glass

Available Thicknesses

Float glass is available in a variety of thicknesses, the most common being 4mm and 6mm. It can also be ordered in custom thicknesses ranging from 2mm to 19mm.

Sheet Sizes

– 2440mm x 1220mm or 2440mm x 3660mm