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Introduction Medium Density Fibreboard


Medium Density Fibreboard (MDF) is a wood based composite material that draws on the usage of wood fibres, rather than particles or veneers to produce board or sheet products. It is typically made as a board type product, though it's use in mouldings and increasing use as a structural product will see beam type products proliferate. It is replacing the use of particleboard in uses such as furniture manufacture, cabinet making, joinery, craft work and flooring. Its advantages include high strengths (MOR of 80 MPa and MOE of 3000 MPa), ease of machining, good weathering properties, and the ability to be made from a wide variety of fibrous products (An Environmental plus).

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Medium Density Fibreboard gets it's name from it's historical place in the production of fibreboards. Manufactured using a dry blowline process to a density of 750 kg/cum, this was originally heavier than existing low density boards such as caneite, and lighter than high density boards such as masonite. Nowadays the same MDF manufacturing proccess is used to produce light boards of 600 kg/cum, and tough high density moisture resistant boards (such as HD3) with densities of 1200 kg/cum.

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Last Update: 5 May 1999
This web site on Medium Density Fibreboard was written by Mr Don Mc Callum, a Bachelor of Engineering (Honours) student at the Australian National University. It was completed as the major assignment for the Forest Products Technology unit at the Department of Forestry,ANU. Don has moved on to a career in the Australian metals industry, but if you would like to contact him about his research, try For comment and feedback on this site, contact