In article , "brian c" wrote:
Here in the UK I`ve always known it as hardboard, it is made of compressed
cardboard I think, can`t see any reason why MDF could not be used in its
place.

Masonite is considerably harder and denser than MDF. It's typically available
in thicknesses of 1/8" (3mm) and 1/4" (6.3mm) in the U.S., whereas MDF
normally is no thinner than 1/2".

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Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.