Unlike the measurements you took for the top and side seals you will need to measure for the bottom seal by measuring the bottom of the door itself.
How to seal gap in garage door.
This takes 5 mins to do and costs nothing.
First you ll need to measure the gap you want to seal.
Determining the length of the seal your garage door will need is as simple as.
Thresholds often are used to keep out surface water when a driveway slopes down toward a garage.
It keeps the garage door pressed up against the outside rubber seal so cold air is not blowing through the gap.
Measure the bottom of the door.
Thresholds can be used alone or in conjunction with a door seal.
Clean the bottom of the door and make sure the ground is also clean and dry.
Like we discussed previously you can install a threshold where your garage door comes down and meets the concrete.
Seal your garage.
If you want to keep your garage from rodents then use a rodent weather seal as a garage door bottom seal.
The most complete protection for your garage measure the gap.
Measure your garage door s width.
They can also help fill a large gap below a door.
So this is it.
Using a threshold seal will come in handy as well to block mice and other bugs.
3 center the threshold on the ground between the tracks on each side of the garage door entrance.
Open the door then measure the bottom of the door using a tape measure.
Garage door stops strips of trim running along both sides and the top of the door opening cover the gaps between the door s edges and jambs and provide a weather seal by means of a flexible flap or flange that overlaps onto the door when it s closed.
A threshold seal serves a similar function to the bottom seal on a garage door but it is attached to the floor rather than the door.