Who did the measuring? I’m not sure what the problem with the guides is either.
I measured the opening and they cut the thing to size and deliver it in parts:
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Roller Shutter Door[/url] by brf[/url], on Flickr
The problem is, they don’t cut the motor to size, but (I guess) have a range of set length and each motor roller has a bar on one side which slides in and out to allow flexibility for a range of openings.
However this one is too wide for the opening (ie the adjuster bar doesn’t retract enough) so the right hand flag pole bracket is pushed right out at the top, twisting the frame. The spacing of the vertical tracks is specified at shutter width + 40mm, which is what I’ve installed it at. To fit the motor, it needs to be +60mm, which will reduce the shutter overlap in the guide rails from 20mm to 10mm, which would be quite easy to pry out. I may dismantle the whole thing and cut the expansion bar in the roller.
As for the electrics – no instructions, 4 wires (coloured) and a PCB with non-colour, non-industry standard labels (NB I am a Chartered Electronic Design Engineer, so do know about these things). I just applied pot luck and guessed ok first time – but pretty shoddy as all they needed was a piece of paper with 4 lines on it…
I wouldn’t recommend Auto-roll to anyone.