A1 non-combustible MgO board

MgO board is a high density structurally reinforced magnesium oxide based sheathing board consisting of a proprietary composition of magnesium oxide that is reinforced with multiple layers of glass fiber mesh. Magnesium oxide is a mineral based raw material.

The sheets are made in various lengths, widths and thicknesses providing a huge range of building options.

As an A1 non-combustible sheathing board is an excellent choice for structural timber applications.


  • Fire rated to EN 13501-1 class A1
  • Can be scribed and snapped up to 12mm
  • Water resistant
  • Environmentally friendly
  • Mould resistant
  • Contractor friendly
  • Gypsum and crystalline silica free
  • Easy to work with

Standard board sizes

2400 x 1200mm (6mm, 9mm and 12mm)
2397 x 1198mm (9mm)
2697 x 1198mm (9mm)

Other board sizes are available.



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