4 Bedroom Barndominium Floor Plans
Four bedrooms start to fit a barndominium at about 1,800 square feet and fit comfortably from 2,000. Here are four 4 bedroom layouts from 30x60 to 40x80, each with its room sizes, its build cost, and a link to open it in the editor.
Four 4 bedroom layouts
Each plan below is drawn to scale by the Plan Kiwi generator: walls, doors and windows in their real positions and every room labelled with its size. Open one in the editor to move walls, add furniture or see it in 3D.
1. 50x40, the compact four
50'-0" x 40'-0" · 2,000 sq ft · 4 bedrooms · 2 bathrooms
2,000 sq ft: a 15 x 18 ft primary suite, three 15 x 11 ft bedrooms, a flex room and a 20 ft great room.
2. 60x40, four and a flex room
60'-0" x 40'-0" · 2,400 sq ft · 4 bedrooms · 2 bathrooms
2,400 sq ft: an 18 x 18 ft primary suite, three 16 x 11 ft bedrooms and a 26 ft great room.
3. 30x60, the hallway four
30'-0" x 60'-0" · 1,800 sq ft · 4 bedrooms · 2 bathrooms
1,800 sq ft on a narrow lot: living and kitchen across the front, four bedrooms off a central hall.
4. 40x80, four with a garage
40'-0" x 60'-0" · 2,400 sq ft · 4 bedrooms · 2 bathrooms
3,200 sq ft: four 12 x 18 ft bedrooms, a flex room and a 2-car garage behind.
The layouts side by side
| Layout | Footprint | Living area | Beds | Baths | Largest bedroom | Great room | Also |
|---|---|---|---|---|---|---|---|
| 50x40, the compact four | 50'-0" x 40'-0" | 2,000 sq ft | 4 | 2 | 15'-0" x 18'-0" | 20 ft wide | flex room, covered porch |
| 60x40, four and a flex room | 60'-0" x 40'-0" | 2,400 sq ft | 4 | 2 | 18'-0" x 18'-0" | 26 ft wide | flex room, covered porch |
| 30x60, the hallway four | 30'-0" x 60'-0" | 1,800 sq ft | 4 | 2 | 13'-6" x 16'-0" | 16.5 ft wide | flex room, covered porch |
| 40x80, four with a garage | 40'-0" x 60'-0" | 2,400 sq ft | 4 | 2 | 12'-0" x 18'-0" | 16 ft wide | flex room, 2-car garage, covered porch |
Measured on the plans above, as generated on 27 October 2026. Footprints are width (the side facing the street) by depth. Bathrooms count full rooms; dimensions are inside the walls of each room as drawn.
How much house four bedrooms need
Four bedrooms of a usable size, two bathrooms, a laundry and an open kitchen and living room take about 2,000 square feet in a barndominium. Below that, something gives: on the 30x50 page, the four bedroom option shares a single bath. At 2,000 sq ft, the 50x40 layout above keeps two baths, a 15 ft wide primary suite and a flex room.
The generator also tells you when a footprint is too small: ask it for four bedrooms in a 30x40 in the editor and it says how many fit.
Where the fourth bedroom goes
In a wide barndominium the bedrooms split into two wings: the primary suite on one side, the other three on the far side around the hall bath. That keeps the parents away from the children and gives every bedroom an outside wall. In a narrow one, the bedrooms line a central hall behind the living area, as in the 30x60 hallway plan.
Open the 50x40 plan or the 60x40 plan and drag the wing walls to trade bedroom width for great room width.
Cost to build a 4 bedroom barndominium
Cost follows square feet more than bedroom count. At the $80 to $120 per square foot Houseplans.com gives for a standard finished barndominium in 2026, the four layouts here run from about $144,000 for the 1,800 sq ft hallway plan to $384,000 for the 3,200 sq ft one, before land.
Houseplans.com's reference point, a typical 2,000 sq ft barndominium at roughly $230,000, matches the 50x40 layout. Each layout's range is in the table below.
| Layout | Living area | Standard finish | Full range |
|---|---|---|---|
| 50x40, the compact four | 2,000 sq ft | $160,000 to $240,000 | $130,000 to $320,000 |
| 60x40, four and a flex room | 2,400 sq ft | $192,000 to $288,000 | $156,000 to $384,000 |
| 30x60, the hallway four | 1,800 sq ft | $144,000 to $216,000 | $117,000 to $288,000 |
| 40x80, four with a garage | 2,400 sq ft | $192,000 to $288,000 | $156,000 to $384,000 |
House only, national figures, land, site work, garage and shop excluded. Houseplans.com, 2026: $80 to $120 per sq ft for a standard finish, $65 to $160 overall. Your state's figure: the cost calculator.
Which 4 bedroom plan to start from
Start from the 50x40 if budget matters most and you can live with 11 ft wide secondary bedrooms; from the 60x40 if you want an 18 ft primary suite and a big great room; from the 30x60 if your lot is narrow; from the 40x80 if you also want a garage and a flex room. Then move walls until the rooms fit your furniture.
For five bedrooms, see the 5 bedroom plans.
Questions
How big does a 4 bedroom barndominium need to be?
A 4 bedroom barndominium with two bathrooms needs about 2,000 square feet, for example a 50x40 footprint. Four bedrooms fit in 1,500 sq ft only with a single shared bathroom.
How much does a 4 bedroom barndominium cost to build?
A 4 bedroom barndominium of 2,000 sq ft costs about $160,000 to $240,000 to build with a standard finish, at $80 to $120 per square foot (Houseplans.com, 2026), land excluded.
What size barndominium is best for 4 bedrooms?
A 50x40 (2,000 sq ft) is the smallest comfortable 4 bedroom barndominium with two baths; a 60x40 (2,400 sq ft) adds a larger primary suite and a wider great room.
Can a 30x60 barndominium have 4 bedrooms?
Yes, a 30x60 barndominium fits four bedrooms and two baths when the 30 ft side faces the road and the bedrooms line a central hall. The plan is on this page.
Are these 4 bedroom plans ready for construction?
No, these are concept plans with exact room sizes for deciding on a layout. An architect, a designer or your builder prepares the construction drawings.
Sources
- Houseplans.com, Is it cheaper to build a house or barndominium in 2026?, read 27 October 2026.
- Realtor.com, How much does it cost to build a barndominium?, read 27 October 2026.
- US Bureau of Economic Analysis, Regional Price Parities by state, "Services: Other", 2024 (table SARPP, released 19 February 2026), read 25 October 2026.