Now temp nail the top seal to the jamb you want the inside edge of the pvc portion to be even with the inside edge of the jamb.
How to cut garage door seal.
Trim the soft weather stripping at the top of the side pieces at about a 45 degree angle so the top and side pieces overlap nicely.
Clean the door bottom photo 2 then cut the new rubber seal to length with a razor knife.
Be patient it takes a lot of pushing and pulling even with a helper.
This video explains how to remove and replace the rubber seal at the bottom of your garage door.
In this episode dave mars shows how to better insulate your garage door to help save energy and money.
Square cut the pvc do not miter and use the utility knife to cut the vinyl flap the same length as the pvc portion of the weather seal.
Door sweeps come in standard sizes but if you cannot find one.
Hold each of the side pieces in place and nail them in the same fashion as you nailed the header piece.
How to replace bottom weather seal on your garage door.
Put enough temp nails in to hold the seal up against the jamb.
Measure and cut the side pieces so they touch the header piece and extend to the garage floor.
New weatherstripping comes in rolls and you can easily cut it to length with a utility knife.
Thread the t shaped edges into the weather seal track then slide the seal across the door.