Small Cabin Floor Plan, 400 sq ft
- Total
- 401 ft²
- Rooms
- 4
- Size
- 20′ × 20′
Concept layout, not a construction drawing. Sizes ignore wall thickness; have a professional check anything you build.
Small cabin floor plan with 1 bedroom, open living/kitchen, bathroom, and mudroom entry, totaling 401 sq ft.
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Description used: “Small cabin with one bedroom, an open living room and kitchen, a bathroom and a mudroom entry, about 400 sq ft”
Rooms
| Room | Size (m) | Area (m²) | Size (ft) | Area (ft²) |
|---|---|---|---|---|
| Living/Kitchen | 3.0 m × 6.1 m | 18.3 m² | 9′10″ × 20′ | 197 ft² |
| Bedroom | 3.1 m × 3.2 m | 9.9 m² | 10′2″ × 10′6″ | 107 ft² |
| Bathroom | 1.4 m × 2.9 m | 4.1 m² | 4′7″ × 9′6″ | 44 ft² |
| Mudroom Entry | 1.7 m × 2.9 m | 4.9 m² | 5′7″ × 9′6″ | 53 ft² |
| Total | 6.1 m × 6.1 m | 37.2 m² | 20′ × 20′ | 401 ft² |
How the space is divided
The 20′ × 20′ footprint is split into four rooms: the Living/Kitchen takes up 197 ft², the largest area, while the Bedroom has 107 ft². The Mudroom Entry (53 ft²) and Bathroom (44 ft²) share a wall, and both connect to the Bedroom and the Living/Kitchen via doors. The open Living/Kitchen spans 3.0 m × 6.1 m, giving it a long, narrow shape that leaves the Bedroom (3.1 m × 3.2 m) nearly square.
Who this layout suits
This plan suits a single person or a couple who want a compact, low-maintenance home. The 197 ft² Living/Kitchen provides generous combined space for daily activities, while the 107 ft² Bedroom offers a separate sleeping area. The Mudroom Entry (53 ft²) is practical for wet or dirty gear, and the 44 ft² Bathroom is compact but functional for one or two people.
How to adapt it
If more bedroom space is needed, you could enlarge the Bedroom by taking 0.6 m from the Living/Kitchen along their 3.2 m shared wall, reducing the open area but still leaving a 3.0 m × 5.5 m living zone. Alternatively, merge the Bedroom and Mudroom Entry (they share a 1.7 m wall) to create a larger private room, but you would lose the entry storage and the direct access from the exterior. Widening the Bathroom from 1.4 m to 1.8 m by borrowing from the Mudroom Entry would add comfort, but the Mudroom would shrink to 1.3 m × 2.9 m, making it less useful as a drop zone.
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