I am looking for product to partition bedroom/bathroom preferably opaque pvc to maximise light from very small windows. Can you help?
Advice from Liz:

Glass blocks available from B&Q
If it can be a permanent feature you could try glass bricks as these will allow the light in. You could get a builder to build a low wall, then have these on top - it doesn't have to go to the ceiling or even to a wall at the side, it can be built as a room divide.

Habitat screen











