Bren wrote:

"Dave H." wrote in message
news:iXrRn.20477$Ha1.5966@hurricane...
Another factor in good soundproofing is mass, particularly for low
frequencies, so it's worth making the second skin from something fairly
heavy, e.g. 12 or 18mm ply/OSB/MDF with a couple of layers of
plasterboard screwed on one or both sides.

Agree about the plasterboard - 3 or 4 layers preferably. The link below
makes interesting reading -
http://www.soundonsound.com/sos/jul0...aqacoustic.htm

Thanks, that's really useful. That suggests using a fire door which is
prefilled with plasterboard: saves me having to construct the layering
myself, though whether it's feasible for me to cut one down to fit the inner
doorframe dimensions I'm not sure. (The fire-door-ness is also useful too,
in case there's a kitchen fire)

If I screw things into the door (eg hooks) is that likely to damage the
soundproofing a lot?

Theo