Garage Door Panel Replacement: comparing quotes

A strut is a horizontal steel stiffener fastened across the inside of a section to keep it from bowing. Wide doors, top sections where the opener arm pulls, and bottom sections that take knocks are the usual places for them. If your damaged section had a strut, the new one gets a straight strut refitted or replaced. If a top section bowed because it never had one, adding a strut is part of putting it right.

Access and working room

A section is wider than the door opening and is carried in and manoeuvred by two people. A cluttered garage, a low ceiling around the spring, or a tight driveway adds handling time.

Spring work required

A bottom section means torsion springs are unwound and rewound, or, on an extension-spring door, the door is raised and secured so the springs relax and its hooks and cables are reset instead. A section changing the door's weight may call for a balance adjustment.

How many sections are affected

One section is the base case. Two adjacent sections add a second unit and its hardware but share the setup; three or more usually prompts a comparison with a complete door so you can weigh both.