Over the years, the frame of a garage door can succumb to weather elements and become structurally unsound. Wood may rot and cinder block at the bottom of the structure may crumble. By addressing the issues, you improve the structural integrity of the garage to prolong its lifetime. This project requires some carpentry skills that the average person can learn.
You will need:
Step 1: Use the hammer and crow bar to remove the trim from around the garage doors to expose the 2x4s that are rotted.
Step 2: If an automatic garage door system is installed, remove the side rail to get access to the 2x6s inside the garage that are damaged.
Step 3: Use the circular saw to cut out the damaged portions of wood.
Step 4: Cut a pressure treated 2×6 to fit the areas that were cut away from existing 2x6s. Install the boards in the correct locations with the hammer and nail.
Step 5: Mix the concrete according to the package instructions. Add it to the area at the bottom of the garage door where the existing concrete has crumbled.
Step 6: Cut two blocks from a 2×4 board. Install one block at the top of each side of the garage door. Run a piece of string between the two boards. This will show you how much the header of the garage door is sagging.
Step 7: Brace the sagging area with a 2×6 board secured vertically between a piece of 2×6 at both the top and bottom of the door.
Step 8: Go inside the garage and remove the filler studs located above the garage door header.
Step 9: Cut and attach several gusset plates between the header of the garage door inside the garage and the garage wall plate that lies above it. Use approximately 24 nails per gusset plate so when the bracing is removed from the header, the gusset will hold up the header.
Step 10: Cut and attach new filler studs in the correct thickness. Install these in between the wall plate and the top of the garage door header.
Step 11: Remove the vertical brace from the outside of the garage door. The string should now be at the bottom of the 2×6 horizontally attached to the top of the garage door opening as well as at the ends of the door.
Step 12: Box in the sides of the garage door with new wood trim. Paint or stain this the desired color.