Does a garage door opener need to be installed on a rail?
Md Ariful Islam
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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পিজিটি(মেডিসিন)
Yes. The rail that you can see in the pictures helps lift the door, because the opener will take the tension off of the cables. It also is used to guide the chain/belt.
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