Sectional doors and hinged doors are adjusted using a basic procedure for.
Gap across bottom of garage door springs.
It s possible that the concrete floor of your garage has settled over time leaving a gap between it and the bottom of the door.
When a garage door is installed and for the lifetime of your garage door it should close and the bottom should seal to the bottom of your driveway.
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It s also actually easy to do.
Garage door sensors may not be aligned correctly 3.
Garage floor may have cracked or shifted 2.
First you need to see what has caused this to happen.
Start by disengaging the door from the automatic opener track so you can work on the cables.
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If it was opening too quickly move it to the next lower hole.
You will need to attach a taper shaped peice of wood to the bottom of the door unless someone knows of another product.
Garage door opener malfunction or door has shifted.
Retest the door balance as you did in step 1.
Or you may be able to cut a taper off the otherside where the floor is high if you have enough door at the top to alllow it to drop that much.
You may consider looking into what has caused the one side to settle.
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The reasons your garage door has a gap in it could be.
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This is not always the case though.
Adjust the springs on both sides of the door the same way.
Garage door seal may be damaged 4.
If this has happened to you you can add more concrete to the floor in order to bring it back up to the right level.
There are times and instances where the garage door will not quite seal to the driveway leaving a small gap.
If your garage has torsion springs across the inside of the door opening you need a professional to adjust the tension.