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Updated July 18, 2026

A Fort Lauderdale School's Double Doors Were Grinding and Close to Falling

A Fort Lauderdale School's Double Doors Were Grinding and Close to Falling

A school’s double doors were sagging, overlapping, and grinding against each other every time they opened or closed. The hinges on both leaves were worn out and already failing when we arrived. We replaced them with BB1279 4.5 by 4.5 ball bearing hinges and had both doors closing smoothly in about two hours.

A Fort Lauderdale school had a set of double doors in bad shape. The two leaves were sagging and overlapping, catching on each other, and grinding metal on metal every single time someone opened or closed them. That noise is the warning. When a double door starts overlapping, the hinges have dropped it out of alignment, and the doors are working against each other instead of meeting in the middle.

The hinges on both sides were worn out and already failing by the time we got there. That is a high-traffic school opening, and standard hinges under that much use eventually wear at the knuckle, the door drops, and once one leaf drops the two stop lining up. Left alone, a door that far gone can pull away from the frame.

We replaced the hinges with BB1279 ball bearing hinges, 4.5 by 4.5. Ball bearing hinges are the right call on a heavy, busy door because the bearings carry the load and the door swings without grinding the knuckle to death. We hung both leaves back into alignment, checked the meeting edge, and had the doors closing smoothly again in about two hours.

We repair sagging and grinding commercial doors across Fort Lauderdale and Broward. See our door hinge repair page or call (954) 371-5674.

From the Job

On-Site Photos

A Fort Lauderdale School's Double Doors Were Grinding and Close to Falling photo 1
A Fort Lauderdale School's Double Doors Were Grinding and Close to Falling photo 2
FAQ

Common Questions

Why are my double doors grinding when they open?

The hinges have likely worn and dropped one or both leaves out of alignment, so the doors overlap and rub. Replacing the hinges and rehanging to alignment fixes it.

What are ball bearing hinges and why use them?

They have bearings between the knuckles that carry the door's weight and let it swing smoothly. On heavy, high-traffic doors they outlast plain hinges and prevent the grinding that comes from a worn knuckle.

Can a sagging door be repaired, or does it need replacing?

Often it can be repaired if caught in time. If only the hinges are worn and the door and frame are sound, new hinges and a rehang solve it. Wait too long and it can become a replacement.

How long does a double-door hinge repair take?

A typical job runs a couple of hours, depending on how far out of alignment the doors are and how many hinges need replacing.

Is a grinding school door a safety issue?

Yes. A door that far out of alignment can bind, fail to latch, or eventually pull from the frame. On a school it should be handled quickly.

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(954) 371-5674
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