It's more complicated than that, Steve. A 30" door will likely have an opening between door stops of around 28-1/2"....and these things are done by the door size rather than the opening size. More modern houses often have 33" doors downstairs (an opening of around 31-1/2"). The moral of this tale is to check first, and to make any stretchers removable or rather high up the legs.Steve Maskery":11xspo0d said:Bear in mind that a traditional house doorway is 30" wide. If you make it any higher, life becomes difficult.