TL;DR
A torsion spring is the tightly wound steel spring mounted on a shaft above a garage door header that stores energy by twisting, paying it out through cable drums to counterbalance the door's weight as it moves. Springs are rated in cycles, with builder-grade units around 10,000 open-close cycles, roughly seven to ten years of average use, and they fail with a distinctive gunshot bang.
What it means
A torsion spring is the tightly wound steel spring mounted on a shaft above a garage door header that stores energy by twisting, paying it out through cable drums to counterbalance the door's weight as it moves. Springs are rated in cycles, with builder-grade units around 10,000 open-close cycles, roughly seven to ten years of average use, and they fail with a distinctive gunshot bang. Because a wound spring holds enough energy to maim, replacement and adjustment with winding bars belongs to trained technicians, who typically replace both springs on a two-spring door at once.
Where it sits in the glossary
Torsion spring is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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