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how up and over garage door works
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how does an up and over garage door work
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In the canopy version, fixed guide pins on the door sides slide up and down in channels in the vertical posts.
In the retractable version, the guide pins slide in the horizontal channels.
In the canopy version, fixed guide pins on the door sides slide up and down in channels in the vertical posts.
In the retractable version, the guide pins slide in the horizontal channels.