a method of making and erecting a framed structure , preferably single level , by milling standard pieces of lumber that are joined into a sturdy , rectangular frame is disclosed . opposed side beams having dado cuts at their opposite ends are joined to opposed face beams having complementary dado cuts at their opposite ends . floor joists connect opposed sidebeams and support subflooring or decking , and , to accommodate certain larger dimensional floorplans , center beams are built into the frame . the frame can rest on a periphery foundation or be erected over posts .