STRUCTAflor General Purpose is structural grade particleboard sheet flooring for use in domestic and residential buildings. It is particularly suited to platform construction (where the floor is laid prior to the erection of walls) as well as fitted floor construction. 25mm thickness is suitable for use over 600mm joist spacing. Produced to meet the requirements of AS/NZ 1860.1 Particleboard Flooring Part 1: Specifications AS 1860.2 Particleboard Flooring Part 2: Installation sets out the minimum performance requirements for the installation of particleboard flooring which are acceptable to building authorities in Australia.