It jogs in and out but here goes: the driver's side lower cabinet is 44" long, the passenger side cabinet is 34 1/2" long. There is 33" between them but any doors for the cabinet,
refrigerator, etc. encroach into that. The bathroom sticks out 4 1/2" and the closet sets back 4 1/2". The total length from the back "step" to the front bench is 79".