: Hi,
: Was wondering if anybody could provide me with a typical weight for square
: Metre )or sq. Foot) of 3/16 WRC with 40z cloth boths sides. wetout on one
: side and filled on the other.
: Cheers

That is very close to what I have done with my last two strip built kayaks.

They are mostly 5.5mm Paulownia, which would be close in weight to 4.5mm WRC.
The glass is exactly as you describe.
If you can wait a couple of days until I return home, I can give you more exact figures, but I can give you some rough figures now.
The 4.5 metre one has a bit over 4.5 metres surface area (I think, but I can check) and weighs under 10kg without the seat and footrest, So that is about 2.2 kg/square metre. The 5 metre kayak has about 5 metres surface are and before I fitted the hatches and bulkeads weighed about 11kg,so that is about the same weight per square metre.

I can check the surface area when I get home if this info is useful. My recollection of the surface area might be out by 5 to 6%.