Stuart Noble wrote:
You need to check that the rebates are deep enough to accept the DG
units.
They're usually a minimum of 11mm thick which is quite a bit
thicker than
standard glass (4mm).
You can get sealed units where the front section is bigger and sits
in the
old rebate. The rest protrudes into the room, which can either look
okay or
a bit naff, depending on the thickness of the wooden frames and the
units .

Sounds interesting - I suppose I could get a decent gap between the
glass this way - do you know of any suppliers or should a standard
glazier be able to sort me out something like this?

Thanks