- 1). Measure the length of the bottom of your garage door with a tape measure so that you can cut the strip of rubber or vinyl to the appropriate size.
- 2). Cut the strip to the exact size of the length of your garage door bottom with a pair of scissors. Use a ruler to cut a perfectly straight line.
- 3). Lift up your garage door until the bottom is just over your head. This angle will allow you to tack the rubber or vinyl seal to the door.
- 4). Tack one end of the rubber or vinyl seal to the bottom of one end of your garage door using two tacks and a hammer. Attach one tack closer to the front of the door and one closer to the back. You may need a partner to hold up the other end of the rubber seal while you're doing this so that your tacks are not ripped out.
- 5). Repeat Step 4 at the other end of your garage door.
- 6). Hammer in tacks along the bottom of the rubber or vinyl seal all the way across the bottom of your garage door, with two rows of tacks spaced about 3 inches apart. One tack in each row should be near the front of the bottom of the door, and one near the back.
- 7). Close the garage door. Your new seal should eliminate gaps between the bottom of the door and the concrete and prevent noticeable drafts.