They do lots of colours and different textures, so they don't look like an industrial unit ! (and I aint got shares in them)
In the picture above it doesn't look 5m wide, but it is (and the garage and drive aren't finished either). The garage is 6m wide internal. Some GRP doors (such as the wickes) are bendy and there are different grades depending upon how stiff you want the door. I spent ages looking round decided the roller one was the best overall. Cheapest isn't always best. I have a single RSJ at the peak of the roof, so i don't lose any space (you will with an up and over electric mechanism) (below)
(no the rsj doesn't have a kink in it, its the way i stitched two images together !)
In the picture above it doesn't look 5m wide, but it is (and the garage and drive aren't finished either). The garage is 6m wide internal. Some GRP doors (such as the wickes) are bendy and there are different grades depending upon how stiff you want the door. I spent ages looking round decided the roller one was the best overall. Cheapest isn't always best. I have a single RSJ at the peak of the roof, so i don't lose any space (you will with an up and over electric mechanism) (below)
(no the rsj doesn't have a kink in it, its the way i stitched two images together !)