Definition
The metal joints between door sections that let the door bend as it follows the curved track. Hinges are numbered by position — a #1 hinge goes between the bottom sections, higher numbers go up the door — and installing the wrong number puts the rollers at the wrong depth. Cracked or squeaking hinges are common on older doors and are an easy catch during a maintenance visit. A snapped hinge can let a section fold, so do not keep running a door with a broken one.
Why this term matters for homeowners
Repair and maintenance terms map to springs, cables, rollers, and tracks — the wear parts that decide whether your door fails on a January morning.
- Use this term to ask better follow-up questions during estimates.
- Look for this language in Learn and Evaluate guides to connect definition to decisions.
- Confirm how this applies to your specific door size, age, and daily use.
Related pages
Category: Repair & Maintenance