GramLine® supplies two profiles of guttering: Square-Line and Quad Gutter which come in various colours to cater to all your guttering needs.


Square-line gutter is a square front gutter that is slotted and needs to be folded around corners, eliminating the use of external angles and fixed with concealed brackets. Ideal for garages and carports with overflow holes designed in the front.

Flow Rate: Volume in 1m length 1.5 litres / second.
6.4 litres measured to overflow holes.

Quad Gutter

Quad gutter is a traditional high front quadrant gutter used on colonial style houses and is very popular on new home construction. It is a slotted gutter with overflow holes and a 115mm diameter.

Flow Rate: Volume in 1m length 1.5 litres / second.
6.2 litres measured to overflow holes.

GramLine® supplies these two profiles as it has major benefits including corrosion resistance, heat resistance, and a self cleaning feature. Made from DURAKOTE®- pre-painted steel is specifically designed for the Australian rainwater products environment. An extremely durable, high quality product with superior corrosion and heat resistance for general use. Ideal for house roofs, garages and carports.


Material Specifications

  • Made from AluZinc (Aluminium Zinc Alloy Coated Steel)
  • Square-Line gutters are available in White, Brown, Heritage Red, Smooth Cream, Merino, Jasmin Brown, Iron Grey, Slate Grey, Rivergum, Dusk, Off White, Birch, Gull Grey, Armour Grey, Mist Green, Caulfield Green, Mountain Blue, Monolith, Ebony
  • Quad gutters are available in Heritage Red, Smooth Cream, Merino, Jasmin Brown, Slate Grey, Iron Grey

Standard Sizes

  • Square-Line – Custom cut to size only
  • Quad – Available in various lengths 3m, 5m, 6m, 8m, 10m, 12m