Plan HG-1178•Modern Cabin•32' × 20' Footprint

641 Sq Ft (20x32) 2 Bed 1 Bath Modern Cabin Floor Plan

641 sq ft heated living • 2 Bedrooms, 1 Bath • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

32' × 20' Shell

PRIMARY SUITE

149 sq ft

16'-6" × 9'-0"

BEDROOM 2

140 sq ft

15'-6" × 9'-0"

GREAT ROOM & DINING

220 sq ft

20'-0" × 11'-0"

BATH & LAUNDRY

60 sq ft

12'-0" × 5'-0"

KITCHEN & ISLAND

72 sq ft

12'-0" × 6'-0"

Build Cost Estimator

Estimated Cost to Build (32' × 20' Modern Cabin)

Region:

Shell / Building Kit

$29,000 – $37,000

Framing package, roof trusses & exterior shell for 640 sq ft base.

Owner-Builder

$77,500 – $101,500

Saves ~$34,500 by managing local slab & interior trades.

Turnkey Builder

$112,000 – $136,000

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

Est. Monthly Payment

$643 / mo

$99,200 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-1178

Download 32' × 20' Modern Cabin 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 (14 yd³), roof surface (~732 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	32'×20' 2x6 Advanced Framing w/ Steel Moment Frame View Wall	640 sq ft shell kit	$29,000 – $37,000
Concrete Slab & Grade Beams	Insulated Concrete Slab w/ Radiant Floor Heating Prep	14 Cubic Yards (4,000 PSI)	$6,500 – $8,250
Roofing & Underlayment	Single-Slope Shed Metal Roof w/ Deep Cantilevered Overhangs (2.5:12 Pitch)	9 Roofing Squares (900 sq ft)	$3,780 – $6,120
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	5,172 Board Feet	$6,982 – $9,568
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + 36" Fiberglass Entry	5 Windows • 4 Doors	$4,450 – $7,000
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

104 Linear Ft

Interior Partitions

~84 Linear Ft

Est. Concrete Slab

14 Cubic Yards

Roof Deck Area

~732 Sq Ft

Plan HG-1178 (641 Sq Ft (20x32) 2 Bed 1 Bath Modern Cabin Floor Plan) is an IRC R304/R310-vetted modern cabin blueprint engineered around a 32'-0" × 20'-0" structural grid (640 sq ft base footprint, 0.63:1 Square-Bay Proportion). Configured on the Consolidated Wet-Wall + Open Great Room topology, this layout delivers 641 sq ft of conditioned residential living area and 120 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 5 distinct architectural zones: PRIMARY SUITE (16'-6" × 9'-0", 149 sq ft), BEDROOM 2 (15'-6" × 9'-0", 140 sq ft), GREAT ROOM & DINING (20'-0" × 11'-0", 220 sq ft), BATH & LAUNDRY (12'-0" × 5'-0", 60 sq ft), KITCHEN & ISLAND (12'-0" × 6'-0", 72 sq ft). Plumbing rough-ins are consolidated across BATH & LAUNDRY, KITCHEN & ISLAND to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (PRIMARY SUITE at 149 sq ft; BEDROOM 2 at 140 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 32' clear-span width utilizes 2x6 advanced framing w/ steel moment frame view wall bearing on 104 linear feet of 6" exterior wall framing (~124 framing studs/posts) and 84 linear feet of interior partitions. The 2.5:12 single-slope shed metal roof w/ deep cantilevered overhangs requires approximately 732 sq ft of roofing material (9 roofing squares), while the insulated concrete slab w/ radiant floor heating prep pours at an estimated 14 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-1178

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 32x20 641 Sq Ft (20x32) 2 Bed 1 Bath Modern Cabin Floor Plan (HG-1178)?

Based on current national residential construction data for modern cabin structures, the dried-in structural shell for Plan HG-1178 (640 sq ft base footprint) ranges from $29,000 to $37,000 ($46/sq ft baseline). A complete turnkey build—including the 14-yard concrete foundation, 84 linear feet of interior framing, MEP rough-ins for 1 bath(s), and interior finishes across 641 sq ft of heated space—ranges from $112,000 to $136,000. 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 641 sq ft 2-bedroom layout?

Plan HG-1178 features 5 architecturally solved spaces inside its 32' × 20' footprint: PRIMARY SUITE (16'-6" × 9'-0", 149 sq ft), BEDROOM 2 (15'-6" × 9'-0", 140 sq ft), GREAT ROOM & DINING (20'-0" × 11'-0", 220 sq ft), BATH & LAUNDRY (12'-0" × 5'-0", 60 sq ft), KITCHEN & ISLAND (12'-0" × 6'-0", 72 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 32' × 20' floor plan be built with post-frame, red-iron steel, or 2x6 stick framing?

Yes. Because the outer envelope is engineered on an even 32'-0" × 20'-0" structural grid (104 LF perimeter) with clear-span 2.5:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for 2x6 Advanced Framing w/ Steel Moment Frame View Wall, 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-1178?

Downloading Plan HG-1178 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (32'-0" × 20'-0"), room-by-room callouts, door swing arcs, and window schedules, plus instant browser printing for contractor bidding and preliminary municipal zoning review.