40×80 Barndominium Floor Plans
The big one: 3,200 ft² comfortably carries four beds, three baths and a full workshop under a single 40×80 roof.
Plan specs
- Footprint
- 40 × 80 ft
- Total area
- 3,200 ft²
- Bedrooms
- 4
- Bathrooms
- 3
- Garage / shop
- Yes
Generated to scale — every room dimension is real and the areas sum to the total.
Barndominiums pair a metal-building shell with a comfortable home inside, so the floor plan is where the whole idea lives or dies. The winning layouts keep the living, kitchen, and dining in one open great room, put the bedrooms on a quiet wing, and leave a clear door into the shop or garage bay.
Designing a 40×80 barndominium plan
- Start from your building size — 40×60 gives ~2,400 ft² before the shop.
- Keep the great room on the gable end for the tallest ceiling and best light.
- Put a mudroom or utility between the shop and the living space.