On Thu, 02 Jul 2020 08:30:19 +0100, Harry Bloomfield, Esq.
wrote:

newshound laid this down on his screen :
The "proper" Renault glazed units are comparatively expensive but I reckon
all I need is one or two simple boat/caravan types fitted within the "single
skin" part at the top of the door/s.

Caravan and probably boat types are basically designed to have a
thicker panel to fit to. You would probably need to add a 25mm piece of
ply around the holes.

You can get seals that go down pretty thin:

https://www.sealsdirect.co.uk/shoppi...artmentId=4#27


Cheers, T i m