I will be fitting a 1500mm wide double glazed PVCu french door which will be the only door at the back of the house. So it needs to be very reliable when used as a single door, i.e. one side left locked / closed, and the other side used as a single door. It will be used a lot like this, since only double opening required in summer as you can imagine. Can anyone recommend good manufacturers for this purpose ?
By the way, I saw some cheap french doors in B&Q. Then I realised why. There was a great big bar down the middle. You openened the two sides and there was a great big post in the middle of the gap ! Who would design such a thing ? Simon.