Richard wrote:
Given that MDF doesnt cup and bow like softwood (particularly cheaper
softwood that hasnt been handled properly), what are the disadvantages
of using it for skirtings an mouldings over normal wood? Is it less
resistant to knocks etc. on external corners for e.g.?? Cheers!

Less (or no) resistance to water so not ideal if the floor's going to
get wet.

Possibly a bit less resistant to knocks than softwood? Dunno. Anyway, I
use it a lot for skirtings. Also comes already primed, so if you've got
a lot to fit, that's one less coat of paint to apply!

David