Shaftliner is a 25mm fire resistant plasterboard made with a gypsum core with recycled blue liner paper. Shaftliner has been designed for elevator systems and other shafts and ducts in multi-level constructions. It is also used in the central fire barrier of the Interhome system. 

When used in a system such as Shaftwall, Shaftliner can help meet the fire rating requirements for walls and ceilings required by the NCC (National Construction Code).