Measure between the outside edges of the door casing.
How to install garage door threshold.
Installing a garage door threshold is simple it will absolutely seal the garage door as long as the seal on the bottom of the door is still good.
A garage door thresholdwill protect your garage floor from weather damage as well as give another layer of protection from pests and debris installing a garage door threshold is easy for any do it yourselfer with a few basic tools.
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The new threshold should have a similar profile to your old threshold and be 1 to 2 inches longer than the length of the doorway so that you can cut it for an exact fit.
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An exterior threshold takes a lot of abuse from foot traffic and weather and it can only withstand so much.
Every garage door threshold we sell comes with printed instructions on how to install it.
That said a lot of our customers want to know how difficult it is to install the garage door threshold and if it will seal their garage door.
Garage door threshold kit usually a rubber garage door threshold that unrolls and lays down directly on the garage floor directly underneath.