24x20 Small Cabin House Plan – 1 Bed Tiny Home Blueprint

This 24x20 small cabin house plan delivers 480 square feet of smart, open living in a clean modern-rustic package, built around a gable roof, corrugated metal roofing, and deep blue-green lap siding with a full-width covered front porch. It reads as a proper little home rather than a shed, with one comfortable bedroom, a full bathroom, and a bright great room that makes the compact footprint feel open and genuinely livable.

Inside, the layout puts space where it counts. The open living and dining area runs 12'7" by 15'2", with room for a real sofa, a dining table, and clear sightlines through to the kitchen, which sits along one wall and shares that same open zone. The single bedroom measures 10'2" by 9'5" and fits a queen bed with room to move around it, while the full bath runs 10'2" by 5'4" with a shower, toilet, and vanity. The covered porch spans the full 24-foot front at 4 feet deep and includes an entry stair, so you get a real outdoor sitting spot instead of a token step at the door.

On the construction side, the cabin sits on a pier and beam foundation with 8-inch concrete post footings and drilled, rebar-reinforced piers, which makes it a strong choice for sloped or raised sites and keeps the floor framing well ventilated. Walls are framed with 2x6 wood studs and insulated at the wall, floor, and ceiling. The gable roof is built with 2x6 and 2x10 rafters, finished in corrugated metal over cedar tongue and groove, with the building topping out at 16 feet 9 inches. The systems are fully specified too, including GFCI-protected receptacles, interconnected smoke detectors, Type M copper water supply, and PVC drain and vent piping.

The size and single-level layout make this a natural fit for a lot of projects. It works as an ADU or backyard guest house, a short-term or long-term rental unit, or a downsizing home for empty nesters who want everything on one floor. It's just as suited to first-time owner-builders who want something achievable but still fully detailed, and it makes an excellent off-grid getaway, lake or hunting cabin, or a quiet home office studio out back.

These drawings are prepared to residential code standards and are not sealed or engineered for every state. Local building departments often require an engineer's review for seismic, wind, or foundation loads, so please confirm requirements with your local permit office before you build.