sounds about right. cheaper new houses w/ 3 car garages are ~28' Wide & 20' Deep. cheaper 2 cars are 19x20 - almost impossible if you have 2 sedans, bikes, lawnmower, etc & want to fit them all in the garage. if you have 2 SUV's, forget it.
my parents 1950's built house was 24x24, which is a...