Plan HG-2606•Duplex / Multi-Gen•54' × 40' Footprint

2,160 Sq Ft (40x54) 2 Bed 2 Bath Duplex / Multi-Gen Floor Plan (STC-60 Mirrored Acoustic Party-Wall Duplex)

2,160 sq ft heated living • 2 Bedrooms, 2 Baths • Free 2D CAD Blueprint (.SVG)

Download Free CAD (.SVG)

Room Dimensions & Zones

54' × 40' Shell

UNIT A SUITE

297 sq ft

16'-6" × 18'-0"

UNIT A BATH

189 sq ft

10'-6" × 18'-0"

UNIT A LIVING

363 sq ft

16'-6" × 22'-0"

UNIT A KITCHEN

231 sq ft

10'-6" × 22'-0"

UNIT B BATH

189 sq ft

10'-6" × 18'-0"

UNIT B SUITE

297 sq ft

16'-6" × 18'-0"

UNIT B KITCHEN

231 sq ft

10'-6" × 22'-0"

UNIT B LIVING

363 sq ft

16'-6" × 22'-0"

Build Cost Estimator

Estimated Cost to Build (54' × 40' Duplex / Multi-Gen)

Region:

Shell / Building Kit

$84,000 – $107,500

Framing package, roof trusses & exterior shell for 2,160 sq ft base.

Owner-Builder

$220,000 – $290,000

Saves ~$99,000 by managing local slab & interior trades.

Turnkey Builder

$319,000 – $389,000

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

Est. Monthly Payment

$1,837 / mo

$283,200 financed (30-Yr)

Down Payment:20%

Interest Rate:6.75%

Free Vector CAD Blueprint • Plan HG-2606

Download 54' × 40' Duplex / Multi-Gen 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 (38 yd³), roof surface (~2,621 sq ft), wall framing & architectural notes

Building Package	Specification	Quantity	Est. Range
Structural Shell & Trusses	54'×40' 2x6 Exterior + Double-Stud Insulated Acoustic Party Wall	2,160 sq ft shell kit	$84,000 – $107,500
Concrete Slab & Grade Beams	Monolithic Concrete Slab w/ Dual Sewer/Water Stub-Outs	38 Cubic Yards (4,000 PSI)	$21,250 – $27,000
Roofing & Underlayment	Architectural Shingle or Standing Seam Metal Hip/Gable (5:12 Pitch)	30 Roofing Squares (3,000 sq ft)	$12,600 – $20,400
Closed-Cell Spray Foam / Insulation	3" Closed-Cell Wall & Roof Deck Thermal Envelope (R-21 to R-38)	12,810 Board Feet	$17,294 – $23,699
Windows & Exterior Doors	Low-E Argon Black Architectural Glazing + 36" Fiberglass Entry	4 Windows • 6 Doors	$3,800 – $6,020
HVAC & Multi-Zone Mini-Split	High-SEER2 Heat Pump / Ductless Mini-Split System	4.5 Ton (54,000 BTU/hr)	$11,700 – $18,450

Exterior Perimeter

188 Linear Ft

Interior Partitions

~193 Linear Ft

Est. Concrete Slab

38 Cubic Yards

Roof Deck Area

~2,621 Sq Ft

Plan HG-2606 (2,160 Sq Ft (40x54) 2 Bed 2 Bath Duplex / Multi-Gen Floor Plan (STC-60 Mirrored Acoustic Party-Wall Duplex)) is an IRC R304/R310-vetted duplex / multi-gen blueprint engineered around a 54'-0" × 40'-0" structural grid (2,160 sq ft base footprint, 0.74:1 Square-Bay Proportion). Configured on the STC-60 Mirrored Acoustic Party-Wall Duplex topology, this layout delivers 2,160 sq ft of conditioned residential living area and 324 sq ft of covered outdoor porch deck.

Inside the conditioned envelope, the floor plan is organized into 8 distinct architectural zones: UNIT A SUITE (16'-6" × 18'-0", 297 sq ft), UNIT A BATH (10'-6" × 18'-0", 189 sq ft), UNIT A LIVING (16'-6" × 22'-0", 363 sq ft), UNIT A KITCHEN (10'-6" × 22'-0", 231 sq ft), UNIT B BATH (10'-6" × 18'-0", 189 sq ft), UNIT B SUITE (16'-6" × 18'-0", 297 sq ft). Plumbing rough-ins are consolidated across UNIT A BATH, UNIT A KITCHEN, UNIT B BATH, UNIT B KITCHEN to minimize sub-slab trenching and manifold pipe runs. Sleeping quarters (UNIT A SUITE at 297 sq ft; UNIT B SUITE at 297 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 54' clear-span width utilizes 2x6 exterior + double-stud insulated acoustic party wall bearing on 188 linear feet of 6" exterior wall framing (~200 framing studs/posts) and 193 linear feet of interior partitions. The 5:12 architectural shingle or standing seam metal hip/gable requires approximately 2,621 sq ft of roofing material (30 roofing squares), while the monolithic concrete slab w/ dual sewer/water stub-outs pours at an estimated 38 cubic yards of 4,000-PSI concrete.

Frequently Asked Questions • Plan HG-2606

Building costs, foundation specs, egress & CAD customization questions

How much does it cost to build the 54x40 2,160 Sq Ft (40x54) 2 Bed 2 Bath Duplex / Multi-Gen Floor Plan (STC-60 Mirrored Acoustic Party-Wall Duplex) (HG-2606)?

Based on current national residential construction data for duplex / multi-gen structures, the dried-in structural shell for Plan HG-2606 (2,160 sq ft base footprint) ranges from $84,000 to $107,500 ($40/sq ft baseline). A complete turnkey build—including the 38-yard concrete foundation, 193 linear feet of interior framing, MEP rough-ins for 2 bath(s), and interior finishes across 2,160 sq ft of heated space—ranges from $319,000 to $389,000. 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 2,160 sq ft 2-bedroom layout?

Plan HG-2606 features 8 architecturally solved spaces inside its 54' × 40' footprint: UNIT A SUITE (16'-6" × 18'-0", 297 sq ft), UNIT A BATH (10'-6" × 18'-0", 189 sq ft), UNIT A LIVING (16'-6" × 22'-0", 363 sq ft), UNIT A KITCHEN (10'-6" × 22'-0", 231 sq ft), UNIT B BATH (10'-6" × 18'-0", 189 sq ft), UNIT B SUITE (16'-6" × 18'-0", 297 sq ft), UNIT B KITCHEN (10'-6" × 22'-0", 231 sq ft), UNIT B LIVING (16'-6" × 22'-0", 363 sq ft). Every habitable room meets or exceeds IRC R304 minimum area (70+ sq ft) and minimum horizontal dimension (7'-0"+) requirements.

Can this 54' × 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 54'-0" × 40'-0" structural grid (188 LF perimeter) with clear-span 5:12 trusses, a local structural engineer or building kit supplier can adapt the blueprint for 2x6 Exterior + Double-Stud Insulated Acoustic Party 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-2606?

Downloading Plan HG-2606 provides the high-resolution scalable vector floor plan (.SVG) with crisp architectural lineweights, exterior dimension strings (54'-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.