Determine how tall and how wide you want the doorway to be.
Putting a door in a garage wall.
Your garage will almost certainly be built with one of the above solid bricks do exist but are very unlikely to be used in a modern garage.
Run a stud finder across the wall perpendicular to the garage door on the right.
Mark this spot with a pencil and then repeat this process on the wall to the left of the garage door.
Move the stud finder around until you find the stud in the wall that is nearest to the garage door.
When you cut the doorway you may end up with voids where you cut the bricks especially with frogged bricks laid frog down.
Check the fit before installing a new door and enlarge the opening as necessary.
Caulk underneath the spots where the bottom of the jamb and brick moulding will be.
If you are going to install a door into the frame take into account the exact dimensions of the door when you make your measurements on the wall.
Use chalk to mark the areas where you want to cut through the brick.
Add another set of marks across the top of the frame to represent a steel lintel that will support the load above the door.
Before you make your first cut double check the measurements.
However the door frame should cover up any inperfections.
Once you are satisfied with the fit of the door remove it and apply several thick beads of silicone caulk to the bottom.
Leew2 18 mar 2011.