Single Glazing (standard on cabins with 28mm wall thickness) is 4mm toughened glass, which resists scratching, flexing, and shatters into small pieces if ever it is broken. It is far better than the Perspex, Acrylic, Styrene, or even non toughened glass alternatives on the market.
Double Glazing (standard on cabins with 45mm and 62mm wall thickness) is 24mm thick. We supply sealed units which are made to EN1279, comprised of 4mm toughened glass, 16mm spacer and 4mm toughened glass. These are brilliant for insulating your windows and maintaining the temperature in your log cabin.