Plan HG-2651•Barndominium•70' × 40' Footprint

2,800 Sq Ft (40x70) 3 Bed 2 Bath Barndominium Floor Plan with Shop

1,820 sq ft heated living + 980 sq ft 2-bay shop • 3 Bedrooms, 2 Baths • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

70' × 40' Shell

2-BAY SHOP / GARAGE

980 sq ft

24'-6" × 40'-0"

PRIMARY SUITE

306 sq ft

17'-6" × 17'-6"

BEDROOM 2

245 sq ft

14'-0" × 17'-6"

BEDROOM 3

245 sq ft

14'-0" × 17'-6"

GREAT ROOM & DINING

630 sq ft

28'-0" × 22'-6"

BATH & MUDROOM

175 sq ft

17'-6" × 10'-0"

KITCHEN & ISLAND

219 sq ft

17'-6" × 12'-6"

Build Cost Estimator

Estimated Cost to Build (70' × 40' Barndominium)

Region:

Shell / Building Kit

$83,000 – $106,000

Framing package, roof trusses & exterior shell for 2,800 sq ft base.

Owner-Builder

$198,000 – $260,000

Saves ~$89,000 by managing local slab & interior trades.

Turnkey Builder

$287,000 – $349,000

Full general contractor finish including slab, HVAC, kitchen & baths.

Est. Monthly Payment

$1,650 / mo

$254,400 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-2651

Download 70' × 40' Barndominium Floor Plan (.SVG)

Scalable 2D architectural vector drawing with exterior and room dimensions, door swings, and fixture layout. Opens in AutoCAD, Illustrator, Inkscape, or any browser.

Material Takeoff & Framing Specifications

Concrete volume (53 yd³), roof surface (~3,306 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	70'×40' Cold-Formed Steel / Post-Frame Clear-Span Trusses (8' o.c.)	2,800 sq ft shell kit	$83,000 – $106,000
Concrete Slab & Grade Beams	4" Reinforced Monolithic Concrete Slab w/ Grade Beam (6" in Shop)	53 Cubic Yards (4,000 PSI)	$31,750 – $40,750
Roofing & Underlayment	26-Gauge Standing Seam Metal Gable Roof (4:12 Pitch)	38 Roofing Squares (3,800 sq ft)	$15,960 – $25,840
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	17,580 Board Feet	$23,733 – $32,523
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + Insulated Overhead Shop Door(s)	7 Windows • 7 Doors	$7,750 – $12,260
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	3.5 Ton (42,000 BTU/hr)	$9,100 – $14,350

Exterior Perimeter

220 Linear Ft

Interior Partitions

~195 Linear Ft

Est. Concrete Slab

53 Cubic Yards

Roof Deck Area

~3,306 Sq Ft

Plan HG-2651 (2,800 Sq Ft (40x70) 3 Bed 2 Bath Barndominium Floor Plan with Shop) is an IRC R304/R310-vetted barndominium blueprint engineered around a 70'-0" × 40'-0" structural grid (2,800 sq ft base footprint, 0.57:1 Square-Bay Proportion). Configured on the Side-Bay Shop + Wet-Core Mudroom Buffer topology, this layout delivers 1,820 sq ft of conditioned residential living area paired with a 980 sq ft fire-separated workshop/garage bay and 364 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 7 distinct architectural zones: 2-BAY SHOP / GARAGE (24'-6" × 40'-0", 980 sq ft), PRIMARY SUITE (17'-6" × 17'-6", 306 sq ft), BEDROOM 2 (14'-0" × 17'-6", 245 sq ft), BEDROOM 3 (14'-0" × 17'-6", 245 sq ft), GREAT ROOM & DINING (28'-0" × 22'-6", 630 sq ft), BATH & MUDROOM (17'-6" × 10'-0", 175 sq ft). Plumbing rough-ins are consolidated across BATH & MUDROOM, KITCHEN & ISLAND to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (PRIMARY SUITE at 306 sq ft; BEDROOM 2 at 245 sq ft; BEDROOM 3 at 245 sq ft) are acoustically buffered from the primary living core and positioned on exterior elevations for code-compliant egress glazing.

From a builder takeoff standpoint, the 70' clear-span width utilizes cold-formed steel / post-frame clear-span trusses (8' o.c.) bearing on 220 linear feet of 6" exterior wall framing (~243 framing studs/posts) and 195 linear feet of interior partitions. The 4:12 26-gauge standing seam metal gable roof requires approximately 3,306 sq ft of roofing material (38 roofing squares), while the 4" reinforced monolithic concrete slab w/ grade beam (6" in shop) pours at an estimated 53 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-2651

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 70x40 2,800 Sq Ft (40x70) 3 Bed 2 Bath Barndominium Floor Plan with Shop (HG-2651)?

Based on current national residential construction data for barndominium structures, the dried-in structural shell for Plan HG-2651 (2,800 sq ft base footprint) ranges from $83,000 to $106,000 ($32/sq ft baseline). A complete turnkey build—including the 53-yard concrete foundation, 195 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 1,820 sq ft of heated space plus the 980 sq ft shop bay—ranges from $287,000 to $349,000. Use the interactive Regional Cost Multiplier on this page to adjust for your local labor market and owner-builder sweat equity.

What are the exact room dimensions inside this 1,820 sq ft 3-bedroom layout?

Plan HG-2651 features 7 architecturally solved spaces inside its 70' × 40' footprint: 2-BAY SHOP / GARAGE (24'-6" × 40'-0", 980 sq ft), PRIMARY SUITE (17'-6" × 17'-6", 306 sq ft), BEDROOM 2 (14'-0" × 17'-6", 245 sq ft), BEDROOM 3 (14'-0" × 17'-6", 245 sq ft), GREAT ROOM & DINING (28'-0" × 22'-6", 630 sq ft), BATH & MUDROOM (17'-6" × 10'-0", 175 sq ft), KITCHEN & ISLAND (17'-6" × 12'-6", 219 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 70' × 40' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 70'-0" × 40'-0" structural grid (220 LF perimeter) with clear-span 4:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for Cold-Formed Steel / Post-Frame Clear-Span Trusses (8' o.c.), conventional 2x6 stick framing at 16" o.c., laminated post-frame columns at 8' o.c., or structural insulated panels (SIPs).

What files are included in the free CAD blueprint download for Plan HG-2651?

Downloading Plan HG-2651 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (70'-0" × 40'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.