And you do that right inside the garage door.
How to replace garage door header.
These 9 foot openings are only supported by a makeshift header consisting of 6 cinder blocks sitting horizontally across the top of the opening.
Take some 2x4 s and use these to add 3 rows of supporting frames around the sides of the door and just below the header.
You basically build kind of a fake wall right up to the underside of those rafters to support them between the garage floor and the underside of the rafters while you do the disassembly and replacement of the header.
By using a steel beam there is less chance of a re occurrence in the sag.
The lintellift system is a patented product that ensures garage door lintels or headers won t sag.
These will help to support the new garage door header.
When a garage door lintel fails it causes the brick wall being supported to sag leaving a noticeable crack right above the garage door.
Step 2 rip 11 inch wide strips of inch plywood using a circular saw.
The lintellift system fixes this issue by adding support underneath.
Step 2 replace the header.
Push the new header into place.
Tbe row of 6 blocks have a 2 x 10 on top and a 2 x 10 below them.
Sagging garage door header lift system.
We have an old cinder block garage shed building built in 1967 with 2 9 foot wide garage door openings.
To install the extra header jack your door up to correct the sag and bolt in the beam.