Installing An Exterior Door
	
	
		I want to install a pre-hung exterior door for side access to my garage.  The wall is made of adobe brick on top of a stem wall whose t.o. stem wall is 8" abv. Garage floor.  Can I cut dn. Into this stem wall so as to make the bottom of door flush with the floor?  What are the chances I will hit rebar or some other item in the foundation/stem wall?  With a sloped garage floor maybe it is better to install door at T.O. stem wall and create some sort of landing.  Please, advise.