This one-story barndominium plan offers 1,600 sq ft of living space on a footprint of 40'-0" × 45'-11", with a covered porch outside the main rectangle. The foyer (7'-8" × 5'-5") opens to the great room, which measures 14'-3" × 23'-7". The kitchen (15'-7" × 11'-3"), with its island and pantry wall, and the dining area (11'-1" × 11'-3") sit beside it, so cooking, eating and sitting share one open space.
A 4'-2" × 20'-2" bedroom hall separates the sleeping areas from the living space and serves Bedroom 2 (14'-3" × 8'-4"), Bedroom 3 (9'-11" × 10'-8"), the hall bath (9'-11" × 5'-2") and the laundry (4'-2" × 11'-9"). The primary bedroom (9'-11" × 15'-8") has a 4'-6" × 11'-3" walk-in closet and a 5'-8" × 11'-3" primary bath.
Layout highlights
- Great room of 14'-3" × 23'-7" anchors the plan and holds the main seating area.
- Kitchen of 15'-7" × 11'-3" has an island and a pantry wall.
- Dining room of 11'-1" × 11'-3" sits next to the kitchen.
- Primary suite combines a 9'-11" × 15'-8" bedroom, 4'-6" × 11'-3" closet and 5'-8" × 11'-3" bath.
- Laundry of 4'-2" × 11'-9" and a 5'-2" deep hall bath serve the two secondary bedrooms.
Room sizes
| Room | Size | Area |
|---|---|---|
| Foyer | 7'-8" × 5'-5" | 41 sq ft |
| Bedroom 2 | 14'-3" × 8'-4" | 119 sq ft |
| Great Room | 14'-3" × 23'-7" | 335 sq ft |
| Bedroom Hall | 4'-2" × 20'-2" | 85 sq ft |
| Laundry | 4'-2" × 11'-9" | 49 sq ft |
| Bedroom 3 | 9'-11" × 10'-8" | 106 sq ft |
| Hall Bath | 9'-11" × 5'-2" | 52 sq ft |
| Primary Bedroom | 9'-11" × 15'-8" | 156 sq ft |
| Kitchen with Island and Pantry Wall | 15'-7" × 11'-3" | 175 sq ft |
| Dining | 11'-1" × 11'-3" | 125 sq ft |
| Walk-in Closet | 4'-6" × 11'-3" | 51 sq ft |
| Primary Bath | 5'-8" × 11'-3" | 64 sq ft |
Who this plan suits
This plan suits households that want a single-level barndominium with three bedrooms, two baths and a defined open living area. It needs a lot that fits the 40'-0" × 45'-11" footprint plus the setbacks required locally.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Barndominium on a 40 x 40 ft rectangular footprint, one story: 3 bedrooms, 2 baths, open great room with kitchen island and dining, laundry, covered porch outside the rectangle, about 1,600 sq ft of living space.” An AI architect drafted the room program, a layout solver placed every wall and door, and the plan was checked automatically for room sizes, circulation and daylight. The same project produced the PDF sheets, layered DXF, IFC model and 3D model you can download above.
Frequently asked questions
What are 40x40 barndominium floor plans?
They are barndominium layouts built around a square or near-square footprint with a 40 ft side. This version is one story with 1,600 sq ft of living space, 3 bedrooms and 2 baths, and its covered porch sits outside the main rectangle.
What affects the lot and cost of building this plan?
The lot must fit the 40'-0" × 45'-11" footprint with setbacks, and the site's slope, soil and utility access will shape foundation work. Cost also depends on your region, the structural system, exterior finishes and the kitchen and bath specifications you choose.
Can I change this plan by chat?
Yes. You can ask for changes by chat, such as resizing rooms, adding or moving a garage to a different side, or adapting the layout to a narrower or wider lot. The plan is then regenerated with updated room sizes and sq ft.
How do I use the PDF, DXF and IFC files?
The PDF is for reading and sharing the drawings with builders, lenders or permit reviewers. The DXF opens in CAD software for 2D editing, and the IFC imports into BIM tools such as Revit or ArchiCAD for 3D coordination. Have a local engineer or designer review the plan before permitting.