Attach weatherstripping to the bottom perimeter of the first panel. Place the panel in the doorway. Drive nails partially into the jambs. Do this on an angle so that they lodge the door in position. If the hinges are not already attached to the top perimeter of the garage door, attach them.
Assemble the different parts for the vertical, horizontal and curved tracks. Follow the specific manufacturer's instructions.
Attach the rollers and all required brackets. Again, follow the manufacturer's instructions for completing this task.
Slide the vertical track onto the rollers of the first section of the garage door. Do the same on the opposite side.
Put in the rollers of the second section. Use an assistant to pick up the section and set it into place. Slide the rollers into the vertical tracks on each side of the door frame.
Secure the first section hinges to the second section hinges, using a drill or screwdriver tip.
Follow the same process to install the third section. Ensure that the door is level and that the vertical track is plumb.
Fasten both vertical tracks' top plates to the garage wall. Be sure that the lag screws adequately go through the framing members. This will support the extreme force the door will wield as it moves up and down.
Fasten jamb brackets into the framing member and secure them to the tracks. Ensure that the framing the screws are going into is sturdy. You may have to tighten the lag screws, so do not tighten them completely just yet.
Attach the horizontal and curved tracks and secure them together with a bolt. Make sure the horizontal track is level.
Cut the backtrack hanger the appropriate length to support the track. Attach the track hanger to sound framing. Mount the track loosely to the hanger. Use the same procedure for the other horizontal track.
Put the last section of the door into place and take out any temporary nails.
Wait to install the torque tube if you are planning on using an opener. If not, follow the manufacturer's instructions for installation.
Roll the garage door up about 4 feet to make sure it is properly aligned on the tracks. Make any necessary adjustments and tighten all fasteners.
Things You Will Need
- Sectional garage door
- Tools required by manufacturer
- Buy a garage door that features a torsion spring system rather than a standard torsion spring. This is safer and easier to adjust.