Fellow Shadow Watchers, An old school friend in Vancouver confirms that he has been using the material 'MDF' (Medium Density Fibreboard) and calling it by that name for many years.
Surely it must be the same in the USA? - is it? Tony Moss P.S. I'm still anxious to encounter 'HDF' i.e *HIGH* Density Fibreboard. THAT would be MAGIC!