This up and over door is working properly, but I would like to make the house more accessible.
This door is a bit heavy and you have to work against gravity to open in entirely. My idea was to cut it in two pieces, make some modifications to the frame, keep one third hinged to the left side as it is currently, and hinge the two other thirds to the right side. The walls are made of bricks. Also it would make the door simpler and easier to service by getting rid of all those springs and rails.
My main concern is about hinging the right panel to the wall. How can I determine if the door itself will be strong enough to support its own weight and not twist ? The right panel is a 2mx2m square (6'6"). I'm not sure about the hinges either.