Garage Door Closing Crooked: Common Causes and Fixes

Why a Garage Door Closes Crooked

A garage door that drifts off its track as it closes puts uneven stress on every moving part. The door might scrape the floor on one side, leave a gap at the top, or bind against the frame. Small misalignments cause noise and premature wear; severe ones can cause the door to jump the track entirely. The fix depends on finding the specific cause, which usually falls into track, roller, spring, or structural categories.

Misaligned Vertical Tracks

The vertical tracks on each side guide the door panels into the curve as the door descends. If one track is farther forward, farther back, or tilted more than the other, the door will pull to one side. A crooked vertical track often shows as a consistent drift toward the tighter side. Use a level to check plumb; even a few degrees off force the door into an uneven path.

How to Correct Track Alignment

• Disconnect the opener and manually move the door to check for resistance.
• Loosen the bracket bolts on the misaligned track.
• Tap the track gently with a rubber mallet to shift it into plumb.
• Tighten the bolts once the track is level, then test the door.

Worn or Damaged Rollers

Rollers run inside the tracks and absorb the lateral forces of the door's movement. Nylon rollers wear smooth over time, while steel rollers can develop flat spots or pits. When one roller is noticeably worse than its counterpart, the door tends to pull toward the weaker side. A grinding or scraping noise during closure often signals roller degradation before the crooked closing becomes visible.

Replacing Rollers

• Lift the door fully and secure it with C-clamps below the bottom roller.
• Remove the roller bracket bolts and slide out the worn roller.
• Match the roller diameter and axle size before installing the replacement.
• Lubricate the new roller and track lightly, then cycle the door several times.

Torsion Spring Imbalance

Torsion springs counterbalance the weight of the door, so the opener does not have to lift the full load. If one spring has lost tension—through fatigue, a broken coil, or an incorrect prior adjustment—the door will close unevenly, favoring the side with less resistance. A spring imbalance often shows as one side of the door sitting lower than the other when fully closed.

When to Call a Professional

Torsion springs store significant energy, and improper handling can result in serious injury. If you suspect a spring issue, limit yourself to visual inspection and call a qualified technician for adjustment or replacement. Do not attempt to adjust or cut springs yourself.

Track Curvature and Radius Mismatch

Above the vertical section, each track curves into a horizontal path toward the garage ceiling. The radius of that curve must match the door's design. If one track has a different radius—whether from a previous repair, a bent section, or a part swap—the door will bind or drift on that side during the curved portion of closure.

Checking the Radius

• Compare the horizontal track sections on both sides side by side.
• Look for visible kinks, dents, or seams where a section was spliced.
• Replace mismatched track sections with the correct radius for your door model.

Structural Issues: Frame and Panels

Sometimes the problem is not the hardware but the door itself. A bent bottom panel, a racked frame, or a sagging header can shift the entire geometry of the opening. The door may have closed straight for years before a collision, settlement, or weather event introduced a new lean.

Identifying Structural Drift

• Check the door panels for dents or bends, especially on the leading edge.
• Measure the gap between the door and the floor on both sides when closed.
• Inspect the garage frame for bowing or separation at the corners.

Preventing Future Crooked Closures

Routine maintenance catches misalignment before it becomes a closure problem. A simple seasonal check—lubricating rollers and hinges, verifying track plumb, and listening for uneven resistance—extends the life of the door and keeps it tracking straight. Tighten all bracket bolts annually, and replace worn rollers in pairs so both sides wear evenly.

When to Call a Technician

If the door is visibly off the track, the spring shows signs of damage, or basic alignment steps do not restore a straight closure, professional service is the safest next step. A technician can diagnose hidden issues—such as a worn cable, a damaged bottom bracket, or a torsion system that needs rebalancing—and perform the repair with the proper tools and safety precautions.