I'm putting in a door in my garage(where a window is now).The floor to ceiling height of the garage is 91in. The cement foundation wall is 42in high. The grade level(from the garage floor) is 33in. I'll have to cut into the foundation approximately 2ft to fit a standard door. The door will be about 13in below grade.I'm thinking of using just brick for the outside doorway, but am not sure about a drainage system.