Garage Door Bottom Gap: Seal, Floor, or Door Alignment?
Repair • Oklahoma City & the metro
Daylight beneath a closed garage door can come from more than a worn seal. The floor profile, door position, and condition of the bottom section all matter. Describe whether the gap runs across the entire opening or appears mainly at one corner.
Compare the shape of the gap
A consistent narrow gap suggests a different discussion from a large triangular opening at one side. Look for visible tears or missing portions of the seal without putting fingers beneath a moving door. Note whether the gap appeared after a repair, impact, or change in the way the door closes.
Discuss the intended result
A replacement seal must fit the door’s retainer and suit the opening. It is not a substitute for correcting a door that sits crooked. Explain whether your concern is windblown debris, pests, or water. Weather sealing can improve an opening, but drainage and floor conditions may require separate attention beyond the door itself.
Helpful details for your inquiry
- Gap location and shape
- Condition of the existing seal
- Main concern at the opening
Further reading: DASMA garage door safety guidance. Use your equipment’s own instructions for model-specific care.
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