If you re installing a two car garage door place a reinforcing bar on the top panel to prevent the door from bowing in the center.
How to insstall a garage door.
Center and level the first section after you install the brackets.
Be sure the bar is centered on the panel.
The rubber gasket on the bottom section will fill the gaps created by an unlevel floor.
Door opening height and width headroom from top of opening to ceiling and back room length of garage.
For the headroom you should have about 10 to 12 of space depending on the spring system you re installing.
The door must be level even if the floor isn t so use shims under the section to level it.
To install a garage door start by placing the first panel in the doorway and installing the parts of your track according to the manufacturer s instructions.
Attach hinges to the top of each panel image 2.
To hold the level in place tape it to the section.
Drill pilot holes image 1 and secure the bar with screws.