We made this shed from a plan called an “Irish Shed.” The walls are cedar logs that we cut from our property and placed on their sides, secured with a special mortar mix. The frame is made from four-by-six treated lumber with lap joints and rebar through them (very strong). I made the door from cedar boards.
Ninety percent of the energy it takes to wash clothes is used to heat water. If you wash in cold water, you could save $40 per year if you have an electric water heater and $30 annually if you have one powered by natural gas.