Bob the Builder, I could use pretty much every coach dimension. Not too worried about height as I'm 5'7" and my gf is 4'11" but I hear it's around 6'-6'2". Rough calculations based on the length chart and cab length that Linda posted (thank you again!) put the exterior coach length around 116". Cabinets, bathroom, countertop, fridge area measurements would be helpful. Also the question of "has anyone stretched the wheelbase on the 18' and lived to tell the tale" floats in my mind...