You can buy them in any diy store and they re very easy to install.
How to fill in garage door gap.
Shut the garage door and go outside to seal up all the gaps.
Take your measure between the garage door and wall.
After shimming the jamb you still have a gap that can allow air to flow and covering this gap with casing doesn t always provide enough insulation.
The flexible vinyl strip has to cover the gap to lay flush on the door and its part with the screw holes should face the side wall.
Https amzn to 2yolagt universal rubber garage door bottom.
They come with a rubber threshold and glue and sometimes a caulking gun too.
If there s a slight gap at the bottom of your garage door then a garage door threshold is a great option.
3 place the vinyl strip on the wall side where the wall meets the garage door.
Use your scissors and cut this size.
2 measure the garage door height.
Garage door strut reinforcement.
Gaps along the sides and top of the door.
Lay down a strip of vinyl weather stripping and transfer the measured length on it.