Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
The corridors, stairs and landings that get people from one room to another. Circulation is floor area that is paid for and lived in only in passing, so a good plan keeps it to a minimum. Nothing is catalogued here: it is settled by the plan rather than by a technique.