Plan HG-1742•Barndominium•30' × 30' Footprint

900 Sq Ft (30x30) 1 Bed 1 Bath Barndominium Floor Plan with Shop

541 sq ft heated living + 360 sq ft 1-bay shop • 1 Bedroom, 1 Bath • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

30' × 30' Shell

1-BAY SHOP / GARAGE

360 sq ft

12'-0" × 30'-0"

PRIMARY SUITE

150 sq ft

11'-6" × 13'-0"

WALK-IN CLOSET

85 sq ft

6'-6" × 13'-0"

GREAT ROOM & DINING

145 sq ft

8'-6" × 17'-0"

BATH & MUDROOM

71 sq ft

9'-6" × 7'-6"

KITCHEN & ISLAND

90 sq ft

9'-6" × 9'-6"

Build Cost Estimator

Estimated Cost to Build (30' × 30' Barndominium)

Region:

Shell / Building Kit

$27,000 – $34,500

Framing package, roof trusses & exterior shell for 900 sq ft base.

Owner-Builder

$62,000 – $81,000

Saves ~$28,000 by managing local slab & interior trades.

Turnkey Builder

$90,000 – $109,000

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

Est. Monthly Payment

$516 / mo

$79,600 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1742

Download 30' × 30' 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 (20 yd³), roof surface (~1,063 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	30'×30' Cold-Formed Steel / Post-Frame Clear-Span Trusses (8' o.c.)	900 sq ft shell kit	$27,000 – $34,500
Concrete Slab & Grade Beams	4" Reinforced Monolithic Concrete Slab w/ Grade Beam (6" in Shop)	20 Cubic Yards (4,000 PSI)	$10,500 – $13,250
Roofing & Underlayment	26-Gauge Standing Seam Metal Gable Roof (4:12 Pitch)	13 Roofing Squares (1,300 sq ft)	$5,460 – $8,840
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	7,425 Board Feet	$10,024 – $13,736
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + Insulated Overhead Shop Door(s)	5 Windows • 6 Doors	$6,450 – $10,300
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	1.5 Ton (18,000 BTU/hr)	$3,900 – $6,150

Exterior Perimeter

120 Linear Ft

Interior Partitions

~106 Linear Ft

Est. Concrete Slab

20 Cubic Yards

Roof Deck Area

~1,063 Sq Ft

Plan HG-1742 (900 Sq Ft (30x30) 1 Bed 1 Bath Barndominium Floor Plan with Shop) is an IRC R304/R310-vetted barndominium blueprint engineered around a 30'-0" × 30'-0" structural grid (900 sq ft base footprint, 1:1 Square-Bay Proportion). Configured on the Side-Bay Shop + Wet-Core Mudroom Buffer topology, this layout delivers 541 sq ft of conditioned residential living area paired with a 360 sq ft fire-separated workshop/garage bay and 144 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 6 distinct architectural zones: 1-BAY SHOP / GARAGE (12'-0" × 30'-0", 360 sq ft), PRIMARY SUITE (11'-6" × 13'-0", 150 sq ft), WALK-IN CLOSET (6'-6" × 13'-0", 85 sq ft), GREAT ROOM & DINING (8'-6" × 17'-0", 145 sq ft), BATH & MUDROOM (9'-6" × 7'-6", 71 sq ft), KITCHEN & ISLAND (9'-6" × 9'-6", 90 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 150 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 30' clear-span width utilizes cold-formed steel / post-frame clear-span trusses (8' o.c.) bearing on 120 linear feet of 6" exterior wall framing (~146 framing studs/posts) and 106 linear feet of interior partitions. The 4:12 26-gauge standing seam metal gable roof requires approximately 1,063 sq ft of roofing material (13 roofing squares), while the 4" reinforced monolithic concrete slab w/ grade beam (6" in shop) pours at an estimated 20 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1742

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 30x30 900 Sq Ft (30x30) 1 Bed 1 Bath Barndominium Floor Plan with Shop (HG-1742)?

Based on current national residential construction data for barndominium structures, the dried-in structural shell for Plan HG-1742 (900 sq ft base footprint) ranges from $27,000 to $34,500 ($32/sq ft baseline). A complete turnkey build—including the 20-yard concrete foundation, 106 linear feet of interior framing, MEP rough-ins for 1 bath(s), and interior finishes across 541 sq ft of heated space plus the 360 sq ft shop bay—ranges from $90,000 to $109,000. 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 541 sq ft 1-bedroom layout?

Plan HG-1742 features 6 architecturally solved spaces inside its 30' × 30' footprint: 1-BAY SHOP / GARAGE (12'-0" × 30'-0", 360 sq ft), PRIMARY SUITE (11'-6" × 13'-0", 150 sq ft), WALK-IN CLOSET (6'-6" × 13'-0", 85 sq ft), GREAT ROOM & DINING (8'-6" × 17'-0", 145 sq ft), BATH & MUDROOM (9'-6" × 7'-6", 71 sq ft), KITCHEN & ISLAND (9'-6" × 9'-6", 90 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 30' × 30' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 30'-0" × 30'-0" structural grid (120 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-1742?

Downloading Plan HG-1742 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (30'-0" × 30'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.