Installing a garage door should be done by a professional or the company you bought it from. If you are getting one, you should know that it usually takes a day to assemble which depends on how many workers are getting the job done. You should gather some information that should be given to the workers like the size where it will be placed and the material.
When you think about DIY garage door installation, you should get some advice from professionals because you don’t want to make a mess when installing on your own. For any type of garage door, you will need a helping hand because you will be working with panels that need two workers at the same times.
Removing the old door
Before proceeding with any removal and installation of the door, make to read through all supplied instruction manuals. Certain steps may vary during the installation process depending on your situation and door model. You will need at least one helper.
The first step in removing an old garage door is to remove the spring. After that you can start with removing the panels, starting at the top panel, remove the hardware and sections one at the time. In order to prevent any damage, never use an old track from a previous door.
Read more about it here: https://www.wikihow.com/Replace-a-Garage-Door
Assembling the panels
You should find the bottom section of the new door, and that can be identified by the rubber weather stripping. Next step is to find the bottom brackets from the hardware you bought and slide them into place locking the safety tabs of the bracket onto the door panel.
Attach the bracket with two sheet metal screws to the panel. Hinges are numbered so you won’t make a mistake. The end hinges will match the corresponding section, and the center hinges will always be a number one hinge.
Depending on the door you have purchased, you will need to attach the supplied struts. This can range from no struts up to three or more. All doors using an operator will require at least one strut.
You can place the bottom sections where you planned for garage door to be. Using a level, balance out the panel, and use shims if needed to make the panel leveled. Once you have determined that it is leveled, toenail the door panel into place with a three-inch nail.
You can then select the next panel and identify the top edge where you will attach the number 2 hinge on the ends and number one in the middle. The process is the same as for the first one except that you can now attach the two panels together.
Assembling and installing new hardware
Attaching rollers is the next step and removing the nails. Slide the track over the rollers so they are all the way into the hinges leaving about a half an inch between the edge of the door and the track. Pre-drill at each lag screw position and attach the flag bracket and track brackets loosely. The tops of both vertical tracks must be level with each other.
Slide the horizontal track over the roller and attach the curve end to the flag bracket with the supplied track bolts and flange nuts with the head of the bolt on the inside of the track. Attach the end of the horizontal angle to the top of the flag bracket with the supplied carriage bolt. Next step is to attach the horizontal track onto the rear track hangers.
The best way to start is by reading all safety information about attaching a spring system as it potentially could cause injury. Attack the bracket with the system to the flag bracket with the supplied carriage bolts. You should finish the installation by pre-drilling onto the wood jamb and fastening with lag bolts.
Slide the spring onto the torsion tube and attack the winding unit. Depending on your door, you might have one or two torsion springs. When you place spring in place, you should add tension to it. Tighten the set screw on the end of the spring onto the torsion tube. Thread the lift cable from the bottom of the door and insert into the cable drum then tightening the set screw. You can read in the manual the number of spring winds needed for your door.