# HoolieHaus — Free IRC-Vetted 2D CAD Floor Plans, Barndominiums, ADUs & Home-Building Tools

> HoolieHaus (https://hooliehaus.com) is an architectural engineering catalog and interactive residential building platform offering 2,462+ IRC R304/R310 code-vetted 2D CAD floor plans across 12 residential styles (Barndominiums, Backyard ADUs, A-Frame Cabins, Modern Cabins, Garage Apartments, Shop Houses/Shouses, Tiny Homes on Foundations, Shipping Container Homes, Side-by-Side Duplexes, Single-Story Ranches, Post-Frame Pole Barn Homes, and Modular Cottages) and 80 standardized structural footprints (12x24 to 50x70). Every blueprint includes free downloadable vector CAD (.SVG) files, room-by-room dimensions,concrete/framing/roofing material takeoffs, and regional shell-kit vs. turnkey build cost estimates.

- Full AI Technical Reference & Extended Catalog Index: [llms-full.txt](https://hooliehaus.com/llms-full.txt)
- XML Sitemap (2,462+ URLs): [sitemap.xml](https://hooliehaus.com/sitemap.xml)

## Core Hubs & Architectural Directories

- [HoolieHaus Floor Plan Catalog & Filter Browser](https://hooliehaus.com): Filter 2,462+ vetted floor plans by style, footprint, square footage, bedrooms, bathrooms, loft, and integrated shop bay.
- [Interactive Home-Building Calculators & CAD Tools Hub](https://hooliehaus.com/tools): Free client-side residential construction calculators, material takeoff estimators, and custom 2D CAD layout tools.
- [Floor Plan Engineering, Cost & Building Blog](https://hooliehaus.com/blog): In-depth structural framing, concrete slab, barndominium cost, and residential layout engineering guides.
- [Visual Floor Plan Roundup Guides](https://hooliehaus.com/guides): Curated 20-to-24 plan visual comparisons with architectural commentary and FAQs.
- [2D CAD Blueprint Gallery](https://hooliehaus.com/cad-gallery): High-density visual index of scalable vector CAD floor plans.
- [Saved Floor Plans & Side-by-Side Comparison Matrix](https://hooliehaus.com/saved): Compare up to 4 floor plans side-by-side across 2D CAD layouts, room dimensions, concrete yards, roof squares, and turnkey build budgets.
- [About HoolieHaus & IRC Engineering Methodology](https://hooliehaus.com/about): How HoolieHaus verifies IRC R304/R310 spatial code compliance, structural bay alignment, and regional build cost takeoffs.
- [Contact HoolieHaus Architectural & Builder Support](https://hooliehaus.com/contact): Contact form and support channels for blueprint questions and builder partnerships.
- [Master Site Directory](https://hooliehaus.com/site-directory): Complete HTML index of all styles, footprints, search silos, guides, and floor plans.

## Free Interactive Home-Building Calculators & CAD Tools

- [Interactive 2D Floor Plan Builder & Customizer](https://hooliehaus.com/tools/floor-plan-builder): Customize your exact building width, depth, home style, bedrooms, bathrooms, and shop bay in real time—and download a scaled vector 2D CAD floor plan (.SVG). (Interactive Design Studio)
- [Interactive Concrete Slab, Monolithic Footing & Rebar Calculator](https://hooliehaus.com/tools/concrete-slab-and-footing-calculator): Calculate exact cubic yardage, ready-mix truckloads, rebar grid sticks, gravel subbase, and turnkey vs. DIY costs for monolithic turn-down slabs and footings from 16x24 to 50x70. (Foundation & Sitework Tool)
- [Interactive Roof Pitch, Rafter Span & Metal Roofing Squares Visualizer](https://hooliehaus.com/tools/roof-pitch-rafter-and-metal-roofing-visualizer): Visualize roof pitch angles (2:12 to 16:12), calculate exact rafter and top-chord lengths, ridge height rise, truss counts, 36-inch metal panel sheet counts, and roofing squares with downloadable SVG cross-sections. (Framing & Roofing Tool)
- [Barndominium Steel Shell vs. Post-Frame vs. Stick-Frame Cost Comparator](https://hooliehaus.com/tools/barndominium-shell-vs-stick-frame-cost-comparator): Compare side-by-side dried-in shell, slab foundation, and turnkey finish costs across Red-Iron/Cold-Formed Steel Barndominiums, Laminated Post-Frame (Pole Barn) Homes, and 2×6 Stick-Framed Houses. (Cost Comparison Tool)
- [Backyard ADU Lot Setback, Max Footprint & Rental Cash-Flow ROI Calculator](https://hooliehaus.com/tools/adu-lot-setback-and-rental-roi-calculator): Verify whether a 16×24, 20×30, or 24×36 detached ADU fits your rear yard setback rules and calculate projected monthly rental cash flow, Net Operating Income (NOI), Cap Rate %, and Cash-on-Cash return. (ADU & Investment Tool)
- [Room-by-Room Mini-Split & Heat Pump BTU Zoning Calculator](https://hooliehaus.com/tools/hvac-mini-split-btu-zoning-calculator): Calculate exact heating and cooling BTU loads, condenser tonnage, and room-by-room ductless mini-split air handler head sizes based on IECC climate zone, ceiling height, and spray foam vs. fiberglass insulation. (Mechanical & HVAC Tool)
- [Shop Bay, RV Overhead Door & Boat Trailer Clearance Planner](https://hooliehaus.com/tools/garage-door-and-shop-bay-clearance-planner): Verify sidewall eave height, overhead roll-up door dimensions, and front-to-back bay depth clearances for Class A motorhomes, fifth-wheel RVs, wakeboard boats, and 2-post automotive lifts. (Shop & Garage Tool)
- [Closed-Cell vs. Open-Cell Spray Foam Board-Foot & R-Value Calculator](https://hooliehaus.com/tools/closed-cell-spray-foam-board-foot-and-r-value-calculator): Calculate exact board-footage (bd-ft), R-value achieved, Class II vapor retarder compliance, and turnkey vs. DIY Froth-Pak kit costs for exterior walls, gables, and roof decks across 16x20 to 60x100 structures. (Insulation & Envelope Tool)
- [Rural Septic Tank Size, Leach Field Trench & Well Setback Estimator](https://hooliehaus.com/tools/septic-system-leach-field-and-well-setback-estimator): Calculate septic tank capacity in gallons, linear footage of leach field drain trenches, soil percolation loading rates, and EPA/local health department well setback compliance for rural home builds. (Sitework & Utilities Tool)

## Editorial Cost & Floor Plan Engineering Blog Posts

- [Preventing Metal Building Condensation: Closed-Cell Spray Foam vs. Fiberglass Batt Systems](https://hooliehaus.com/blog/closed-cell-spray-foam-vs-batt-insulation-condensation-guide): Why do metal buildings and barndominiums 'rain inside'? Compare closed-cell spray foam vs. vinyl-faced fiberglass batts for thermal bridging, dew-point condensation prevention, and long-term framing protection. (Published 2026-11-09)
- [How Shared Wet-Wall Plumbing & Smart Utility Trenching Save $8,000+ on Backyard ADU Construction](https://hooliehaus.com/blog/backyard-adu-utility-trenching-and-wet-wall-plumbing-guide): Discover why utility trenching and under-slab DWV rough-ins are the #1 hidden cost in detached ADU builds—and how a single back-to-back 2x6 wet wall cuts $8,000 to $14,000 off your plumbing and foundation budget. (Published 2026-11-08)
- [Building a 24x36 Garage with Apartment Above: IRC Fire Separation, Stair Headroom & Clear-Span Rules](https://hooliehaus.com/blog/garage-with-apartment-above-fire-separation-and-stair-codes): Planning a carriage house or garage apartment? Master the 2024 IRC R302.6 Type X fire-rated ceiling assembly, R311.7 staircase headroom geometry, and LVL/steel beam spans for 2- and 3-bay garage lofts. (Published 2026-11-08)
- [A-Frame Cabin Floor Plan Guide: Solving 12:12 Roof Pitch Headroom, Dormers & Sleeping Lofts](https://hooliehaus.com/blog/a-frame-cabin-dormer-and-loft-headroom-planning): Learn how to calculate usable standing headroom under 12:12 and 16:12 A-frame rafters, frame shed dormers for upstairs bathrooms, and meet IRC R304 ceiling height codes in 24x32 to 30x40 cabins. (Published 2026-11-08)
- [Off-Grid Barndominiums & Cabins: Calculating Roof Solar Kilowatts, LiFePO4 Battery Sizing & Heat Pump Loads](https://hooliehaus.com/blog/off-grid-solar-roof-pitch-and-battery-sizing-guide): Why pay $35,000+ for rural utility line extensions? Learn how to size a standing-seam solar array, 48V LiFePO4 battery bank, and high-SEER2 inverter heat pump for 30x40 barndominiums and modern cabins. (Published 2026-11-08)
- [30x40 vs. 40x60 Barndominium Floor Plans: True Shell & Turnkey Cost Comparison](https://hooliehaus.com/blog/30x40-vs-40x60-barndominium-cost-and-layout-guide): Compare 1,200 sq ft (30x40) vs. 2,400 sq ft (40x60) barndominiums across foundation concrete yardage, steel kit pricing, truss engineering, and turnkey finish costs—with proven layout recommendations. (Published 2026-11-06)
- [How to Design a Custom Barndominium or ADU Floor Plan That Saves $15,000+ in Framing & Plumbing](https://hooliehaus.com/blog/how-to-design-custom-barndominium-floor-plan-layout): Learn the 4 structural layout rules professional builders use—standard 4-foot bay widths, back-to-back wet walls, clear-span trusses, and mudroom shop buffers—plus test your own dimensions in our Interactive 2D Floor Plan Builder. (Published 2026-11-05)

## Visual Floor Plan Roundup Guides

- [24 Best Barndominium Floor Plans with Shop Bays (30x40 to 40x80 CAD Blueprints)](https://hooliehaus.com/guides/best-barndominium-floor-plans-with-shop): Compare clear-span steel and post-frame barndominium layouts featuring drive-through RV bays, 1-hour fire separation walls, mudroom buffers, and vaulted great rooms.
- [24 Backyard ADU & Granny Flat Floor Plans Under 1,000 Sq Ft (1 & 2 Bedroom Layouts)](https://hooliehaus.com/guides/backyard-adu-granny-flat-floor-plans-under-1000-sq-ft): Code-compliant detached accessory dwelling unit blueprints from 320 to 1,000 sq ft engineered for narrow urban setbacks, aging-in-place accessibility, and rental income.
- [24 A-Frame & Modern Cabin Floor Plans with Lofts & Panoramic Glass Walls](https://hooliehaus.com/guides/a-frame-and-modern-cabin-floor-plans-with-loft): Explore steep-gable 60-degree A-frame cabins and monopitch modern retreat blueprints engineered for short-term vacation rentals, mountain lots, and off-grid solar.
- [20 Garage with Apartment Above & Carriage House Floor Plans (20x24 to 36x48)](https://hooliehaus.com/guides/garage-with-apartment-above-carriage-house-plans): Two-story detached garage-apartment blueprints pairing multi-bay lower workshops with code-compliant upstairs living quarters and fire-separated stair vestibules.
- [20 Shop House (Shouse) Floor Plans with High-Bay RV & Equipment Storage](https://hooliehaus.com/guides/shop-house-shouse-floor-plans-with-rv-bay): Heavy-duty red-iron steel and post-frame Shouse blueprints allocating 50% to 70% of the building footprint to oversized workshop, boat, and RV bays.
- [24 Best 30x40 & 30x50 Floor Plans (1,200 to 1,500 Sq Ft Barndo, Ranch & Cabin Layouts)](https://hooliehaus.com/guides/30x40-and-30x50-floor-plans-every-layout-compared): See how a simple 30-foot-wide clear-span rectangle transforms into 1-bed shop homes, 2-bed cabins, and 3-bed 2-bath split-bedroom ranches.
- [20 Shipping Container & Tiny Home on Foundation Floor Plans (300 to 960 Sq Ft)](https://hooliehaus.com/guides/shipping-container-and-tiny-home-floor-plans): IRC-compliant micro-homes on permanent foundations and modular 20-ft / 40-ft High-Cube ISO shipping container floor plans with zero wasted hallway space.
- [20 Side-by-Side Duplex & Multi-Generational House Plans (STC-60 Party Wall Designs)](https://hooliehaus.com/guides/build-to-rent-duplex-and-multi-generational-floor-plans): Investor-grade 2-unit duplex blueprints featuring mirrored back-to-back plumbing wet walls, double-stud acoustic separation, and low-cost rectangular rooflines.
- [24 Simple Rectangular Ranch & Modular Cottage House Plans (Zero-Valley Roofs)](https://hooliehaus.com/guides/simple-rectangular-ranch-and-modular-cottage-plans): Value-engineered 4-corner single-story ranch and prefab-ready modular cottage blueprints designed to cut framing, foundation, and roofing costs by 20%+.
- [24 Post-Frame Pole Barn Home Floor Plans & Turnkey Cost Guide (28x40 to 50x70)](https://hooliehaus.com/guides/post-frame-pole-barn-home-plans-and-cost-guide): Laminated-column post-frame house blueprints engineered for 8-ft on-center structural bays, Perma-Column foundations, and fast dried-in lockup.
- [24 Best Split-Bedroom 3 Bed 2 Bath Floor Plans (Barndominium, Ranch & Cabin)](https://hooliehaus.com/guides/split-bedroom-3-bed-2-bath-house-and-barndominium-plans): Compare 3-bedroom, 2-bathroom floor plans engineered with a central vaulted great room and kitchen island that acoustically separates the primary suite from secondary bedrooms.

## 12 Residential & Post-Frame Architectural Styles

- [Barndominium Floor Plans](https://hooliehaus.com/styles/barndominium): Clear-span steel & post-frame living with optional integrated shop bays. Shell kit: ~$32/sq ft | Turnkey: ~$138/sq ft | Structural system: Cold-Formed Steel / Post-Frame Clear-Span Trusses (8' o.c.).
- [Backyard ADU / Granny Flat Floor Plans](https://hooliehaus.com/styles/backyard-adu): Code-compliant accessory dwelling units engineered for compact setbacks. Shell kit: ~$48/sq ft | Turnkey: ~$195/sq ft | Structural system: 2x6 Dimensional Lumber Framing / Panelized SIP Option.
- [A-Frame Cabin Floor Plans](https://hooliehaus.com/styles/a-frame-cabin): Iconic steep-gable structural triangles with panoramic glass walls and upper lofts. Shell kit: ~$45/sq ft | Turnkey: ~$175/sq ft | Structural system: Heavy Timber / Engineered Glulam A-Truss System (4' o.c.).
- [Modern Cabin Floor Plans](https://hooliehaus.com/styles/modern-cabin): Clean monopitch rooflines, floor-to-ceiling glazing, and indoor-outdoor decks. Shell kit: ~$46/sq ft | Turnkey: ~$182/sq ft | Structural system: 2x6 Advanced Framing w/ Steel Moment Frame View Wall.
- [Tiny Home on Foundation Floor Plans](https://hooliehaus.com/styles/tiny-home-foundation): Permanent IRC-compliant micro-homes from 300 to 600 sq ft on fixed foundations. Shell kit: ~$50/sq ft | Turnkey: ~$190/sq ft | Structural system: 2x6 High-R-Value Stick Frame or Structural Insulated Panels (SIP).
- [Garage with Loft / Apartment Above Floor Plans](https://hooliehaus.com/styles/garage-apartment): Multi-bay lower vehicle & workshop storage with a full living apartment overhead. Shell kit: ~$38/sq ft | Turnkey: ~$145/sq ft | Structural system: 2x6 Lower Walls + 14" Engineered Wood I-Joist Floor System.
- [Shop House (Shouse) Floor Plans](https://hooliehaus.com/styles/shop-house): Heavy-duty oversized RV & equipment shop paired with fire-separated living quarters. Shell kit: ~$30/sq ft | Turnkey: ~$128/sq ft | Structural system: Red-Iron I-Beam or Heavy Post-Frame Clear-Span (14'–16' Eave).
- [Duplex / Multi-Gen Floor Plans](https://hooliehaus.com/styles/duplex): Dual-income and multi-generational layouts with acoustic party-wall engineering. Shell kit: ~$40/sq ft | Turnkey: ~$155/sq ft | Structural system: 2x6 Exterior + Double-Stud Insulated Acoustic Party Wall.
- [Single-Story Ranch Floor Plans](https://hooliehaus.com/styles/single-story-ranch): Timeless single-level living with split-bedroom privacy and open kitchen islands. Shell kit: ~$42/sq ft | Turnkey: ~$162/sq ft | Structural system: 2x6 Conventional Stick Frame w/ Prefabricated Roof Trusses.
- [Container Home Floor Plans](https://hooliehaus.com/styles/container-home): Modular 20-ft and 40-ft High-Cube ISO shipping container architectural layouts. Shell kit: ~$36/sq ft | Turnkey: ~$148/sq ft | Structural system: High-Cube (9'6") Corten Steel ISO Modules w/ Tube Steel Headers.
- [Pole Barn Home (Post-Frame) Floor Plans](https://hooliehaus.com/styles/pole-barn-home): Ultra-economical laminated post-frame shells with deep wrap-around porches. Shell kit: ~$28/sq ft | Turnkey: ~$124/sq ft | Structural system: 3-Ply Laminated Post-Frame Columns (8' o.c.) + Bookshelf Girts.
- [Modular / Prefab Cottage Floor Plans](https://hooliehaus.com/styles/modular-cottage): Factory-precision single and double-section module footprints for rapid site set. Shell kit: ~$44/sq ft | Turnkey: ~$158/sq ft | Structural system: Factory-Engineered 2x6 Modular Box System w/ Marriage Wall.

## High-Intent Architectural Search Silos

- [1,200 Sq Ft 2 Bedroom Barndominium Floor Plans with Shop](https://hooliehaus.com/silo/1200-sq-ft-2-bedroom-barndominium-floor-plan-with-shop): Browse architecturally vetted 30x40 and 1,200 sq ft 2-bedroom barndominium blueprints featuring integrated drive-in shop bays, mudroom separation, and open great rooms.
- [600 Sq Ft ADU Granny Flat Floor Plans (1 Bed, 1 Bath)](https://hooliehaus.com/silo/600-sq-ft-adu-granny-flat-floor-plan-1-bed-1-bath): Code-compliant 20x30 and 600 sq ft backyard ADU and granny flat layouts with consolidated wet walls, accessible 36-inch doors, full kitchens, and covered porches.
- [24x36 Garage with Apartment Above Layouts & Blueprints](https://hooliehaus.com/silo/24x36-garage-with-apartment-above-layout): Two-story 24x36 carriage house and garage-apartment blueprints pairing a 2-to-3 bay lower workshop with a full 864 sq ft upstairs apartment.
- [Small A-Frame Cabin Floor Plans Under 1,000 Sq Ft with Loft](https://hooliehaus.com/silo/small-a-frame-cabin-floor-plans-under-1000-sq-ft-with-loft): Steep-gable A-frame cabin blueprints under 1,000 sq ft featuring main-floor bedroom and bath, dramatic two-story glass gable wall, and overlooking upper sleeping loft.
- [40x60 Shop House (Shouse) Floor Plans with RV Bay](https://hooliehaus.com/silo/40x60-shop-house-shouse-floor-plans): 2,400 sq ft 40x60 Shouse layouts combining oversized clear-span RV/equipment shop bays with 2-to-3 bedroom fire-separated living quarters.
- [30x40 Barndominium & Pole Barn Home Floor Plans (1,200 Sq Ft)](https://hooliehaus.com/silo/30x40-barndominium-and-pole-barn-floor-plans): Compare every architectural way to configure a 30x40 building shell: 1-bed with big shop, 2-bed with garage bay, or 3-bed 2-bath all-living ranch.
- [1,500 Sq Ft 3 Bedroom 2 Bath Barndominium Floor Plans](https://hooliehaus.com/silo/1500-sq-ft-3-bedroom-2-bath-barndominium-floor-plans): Split-bedroom 30x50 and 1,500 sq ft 3-bedroom 2-bath barndominium blueprints featuring vaulted center great rooms, kitchen islands, and walk-in pantries.
- [800 Sq Ft 2 Bedroom Backyard ADU & Casita Floor Plans](https://hooliehaus.com/silo/800-sq-ft-2-bedroom-backyard-adu-floor-plans): High-efficiency 2-bedroom backyard ADU and detached casita blueprints from 720 to 900 sq ft engineered for municipal setback compliance and rental income.
- [400 Sq Ft Tiny Home on Foundation Floor Plans (IRC Vetted)](https://hooliehaus.com/silo/400-sq-ft-tiny-home-on-foundation-floor-plans): Permanent IRC R304-compliant tiny home blueprints from 300 to 500 sq ft on slab or crawlspace foundations with full baths, kitchens, and zero wasted corridor space.
- [2,000 Sq Ft Barndominium Floor Plans with Attached Shop](https://hooliehaus.com/silo/2000-sq-ft-barndominium-floor-plans-with-garage-shop): Family-sized 40x50 and 2,000 sq ft barndominium and pole barn house layouts combining 3-to-4 bedrooms with multi-bay heated workshops and wrap-around porches.
- [Modern Monopitch Cabin Floor Plans with View Glass & Deck](https://hooliehaus.com/silo/modern-monopitch-cabin-floor-plans-with-glass-wall): Contemporary single-slope shed-roof cabin blueprints from 600 to 1,800 sq ft engineered around panoramic window walls, radiant slab prep, and deep cantilevered decks.
- [40-Ft High-Cube Shipping Container Home Floor Plans](https://hooliehaus.com/silo/40ft-high-cube-shipping-container-home-floor-plans): Single, double, and triple-module 40-ft High-Cube ISO shipping container floor plans featuring structural cut-out schedules, closed-cell insulation envelopes, and zero-waste plumbing cores.
- [Side-by-Side Duplex & Multi-Gen Floor Plans (Build-to-Rent)](https://hooliehaus.com/silo/side-by-side-duplex-floor-plans-for-rental-investors): Symmetric 2-unit duplex floor plans featuring STC-60 acoustic party walls, mirrored back-to-back plumbing wet cores, separate meters, and high rental yield footprints.
- [Simple Rectangular 3 Bedroom Single-Story Ranch House Plans](https://hooliehaus.com/silo/1500-sq-ft-3-bedroom-single-story-ranch-house-plans): Cost-engineered 4-corner rectangular ranch floor plans that eliminate expensive roof valleys while providing split-bedroom privacy, vaulted living rooms, and optional garages.
- [30x50 Pole Barn Home & Barndominium Floor Plans (1,500 Sq Ft)](https://hooliehaus.com/silo/30x50-pole-barn-home-and-barndominium-floor-plans): Explore 1,500 sq ft 30x50 post-frame, barndominium, and ranch floor plans engineered for 8-ft and 10-ft structural truss spacing.
- [40x80 Barndominium & Shop House Floor Plans (3,200 Sq Ft)](https://hooliehaus.com/silo/40x80-barndominium-and-shop-house-floor-plans): Full-scale 3,200 sq ft 40x80 barndominium and shop-house blueprints with multi-bay RV/equipment workshops, 3-to-4 bedroom luxury living wings, and covered porches.
- [Prefab & Modular Cottage Floor Plans Under 1,200 Sq Ft](https://hooliehaus.com/silo/prefab-modular-cottage-floor-plans-under-1200-sq-ft): Factory-ready and stick-buildable modular cottage blueprints under 1,200 sq ft designed around standard marriage-wall widths and high-efficiency thermal envelopes.
- [Post-Frame Pole Barn House Plans with Shop & Porch](https://hooliehaus.com/silo/post-frame-pole-barn-house-plans-with-wrap-around-porch): Economical laminated-column post-frame house blueprints engineered for Perma-Column pier or monolithic slab foundations with integrated garage bays.
- [2 Bedroom A-Frame Cabin Floor Plans with Upper Loft](https://hooliehaus.com/silo/2-bedroom-a-frame-cabin-floor-plans-with-loft): Vacation-rental-ready 2-bedroom A-frame cabin blueprints combining main-level bedrooms and baths with a panoramic overlooking loft and front timber deck.
- [Detached Garage Apartment & Carriage House Floor Plans](https://hooliehaus.com/silo/detached-garage-apartment-carriage-house-plans): Complete collection of 2-story garage-with-apartment-above blueprints from 20x24 compact carriage houses to 36x48 3-bay workshop apartments.
- [Shop House (Shouse) Floor Plans with High-Bay Workshop](https://hooliehaus.com/silo/shop-house-shouse-floor-plans-with-rv-bay): Heavy-duty Shop House blueprints prioritizing oversized workshop, boat, and RV bays alongside code-compliant fire-separated residential living quarters.
- [20x30 Cabin, ADU & Tiny Home Floor Plans (600 Sq Ft)](https://hooliehaus.com/silo/20x30-cabin-and-adu-floor-plans-600-sq-ft): Compare 600 sq ft 20x30 floor plans across Backyard ADU, Modern Cabin, A-Frame, and Tiny Home styles with consolidated plumbing wet walls.
- [24x40 Cabin, Ranch & Garage Apartment Floor Plans (960 Sq Ft)](https://hooliehaus.com/silo/24x40-cabin-ranch-and-garage-apartment-floor-plans): Versatile 960 sq ft 24x40 building footprints engineered for 2-bedroom cabins, backyard ADUs, modular cottages, and 2-story garage apartments.
- [36x48 Barndominium, Pole Barn & Shop House Plans (1,728 Sq Ft)](https://hooliehaus.com/silo/36x48-barndominium-and-shop-house-floor-plans): Classic 36x48 barn footprint layouts offering 1,728 sq ft of main-level structural bay flexibility for 2-to-3 bedroom barndominiums and shop homes.

## Most Popular Structural Building Footprints (Width × Depth)

- [12x24 Floor Plans (288 Sq Ft Base)](https://hooliehaus.com/footprints/12x24): Vetted 12' × 24' (288 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [12x28 Floor Plans (336 Sq Ft Base)](https://hooliehaus.com/footprints/12x28): Vetted 12' × 28' (336 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [12x32 Floor Plans (384 Sq Ft Base)](https://hooliehaus.com/footprints/12x32): Vetted 12' × 32' (384 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [14x24 Floor Plans (336 Sq Ft Base)](https://hooliehaus.com/footprints/14x24): Vetted 14' × 24' (336 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [14x28 Floor Plans (392 Sq Ft Base)](https://hooliehaus.com/footprints/14x28): Vetted 14' × 28' (392 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [14x32 Floor Plans (448 Sq Ft Base)](https://hooliehaus.com/footprints/14x32): Vetted 14' × 32' (448 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [14x36 Floor Plans (504 Sq Ft Base)](https://hooliehaus.com/footprints/14x36): Vetted 14' × 36' (504 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [14x40 Floor Plans (560 Sq Ft Base)](https://hooliehaus.com/footprints/14x40): Vetted 14' × 40' (560 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [16x20 Floor Plans (320 Sq Ft Base)](https://hooliehaus.com/footprints/16x20): Vetted 16' × 20' (320 sq ft base) layouts for backyard-adu, tiny-home-foundation, container-home.
- [16x24 Floor Plans (384 Sq Ft Base)](https://hooliehaus.com/footprints/16x24): Vetted 16' × 24' (384 sq ft base) layouts for backyard-adu, tiny-home-foundation.
- [16x28 Floor Plans (448 Sq Ft Base)](https://hooliehaus.com/footprints/16x28): Vetted 16' × 28' (448 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [16x30 Floor Plans (480 Sq Ft Base)](https://hooliehaus.com/footprints/16x30): Vetted 16' × 30' (480 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [16x32 Floor Plans (512 Sq Ft Base)](https://hooliehaus.com/footprints/16x32): Vetted 16' × 32' (512 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, container-home.
- [16x36 Floor Plans (576 Sq Ft Base)](https://hooliehaus.com/footprints/16x36): Vetted 16' × 36' (576 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [16x40 Floor Plans (640 Sq Ft Base)](https://hooliehaus.com/footprints/16x40): Vetted 16' × 40' (640 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment, container-home.
- [18x24 Floor Plans (432 Sq Ft Base)](https://hooliehaus.com/footprints/18x24): Vetted 18' × 24' (432 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [18x28 Floor Plans (504 Sq Ft Base)](https://hooliehaus.com/footprints/18x28): Vetted 18' × 28' (504 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [18x30 Floor Plans (540 Sq Ft Base)](https://hooliehaus.com/footprints/18x30): Vetted 18' × 30' (540 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [18x32 Floor Plans (576 Sq Ft Base)](https://hooliehaus.com/footprints/18x32): Vetted 18' × 32' (576 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [18x36 Floor Plans (648 Sq Ft Base)](https://hooliehaus.com/footprints/18x36): Vetted 18' × 36' (648 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [20x20 Floor Plans (400 Sq Ft Base)](https://hooliehaus.com/footprints/20x20): Vetted 20' × 20' (400 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [20x24 Floor Plans (480 Sq Ft Base)](https://hooliehaus.com/footprints/20x24): Vetted 20' × 24' (480 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation.
- [20x28 Floor Plans (560 Sq Ft Base)](https://hooliehaus.com/footprints/20x28): Vetted 20' × 28' (560 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [20x30 Floor Plans (600 Sq Ft Base)](https://hooliehaus.com/footprints/20x30): Vetted 20' × 30' (600 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [20x32 Floor Plans (640 Sq Ft Base)](https://hooliehaus.com/footprints/20x32): Vetted 20' × 32' (640 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [20x36 Floor Plans (720 Sq Ft Base)](https://hooliehaus.com/footprints/20x36): Vetted 20' × 36' (720 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, garage-apartment.
- [20x40 Floor Plans (800 Sq Ft Base)](https://hooliehaus.com/footprints/20x40): Vetted 20' × 40' (800 sq ft base) layouts for barndominium, pole-barn-home, single-story-ranch, backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, garage-apartment.
- [22x28 Floor Plans (616 Sq Ft Base)](https://hooliehaus.com/footprints/22x28): Vetted 22' × 28' (616 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, tiny-home-foundation, garage-apartment.
- [22x30 Floor Plans (660 Sq Ft Base)](https://hooliehaus.com/footprints/22x30): Vetted 22' × 30' (660 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, garage-apartment.
- [22x32 Floor Plans (704 Sq Ft Base)](https://hooliehaus.com/footprints/22x32): Vetted 22' × 32' (704 sq ft base) layouts for backyard-adu, a-frame-cabin, modern-cabin, modular-cottage, garage-apartment.

## Representative IRC-Vetted Floor Plan Blueprints

- [Plan HG-1001 — 1,200 Sq Ft (30×40) 2 Bed, 2 Bath Barndo Floor Plan with Shop](https://hooliehaus.com/plan/hg-1001-1200-sq-ft-30x40-2-bed-2-bath-barndominium-with-shop): 40'×30' (781 sq ft heated + 420 sq ft shop), 2 Bed, 2 Bath Barndominium (Attached Shop + Mudroom Entry).
- [Plan HG-1194 — 800 Sq Ft (20×40) 1 Bed, 1 Bath Barndo Floor Plan with Shop](https://hooliehaus.com/plan/hg-1194-800-sq-ft-20x40-1-bed-1-bath-barndominium-with-shop): 40'×20' (520 sq ft heated + 280 sq ft shop), 1 Bed, 1 Bath Barndominium (Attached Shop + Mudroom Entry).
- [Plan HG-1195 — 800 Sq Ft (20×40) 1 Bed, 1 Bath Barndo Floor Plan with Shop — Pull-Through Shop + Open Living](https://hooliehaus.com/plan/hg-1195-800-sq-ft-20x40-1-bed-1-bath-barndominium-with-shop-v2): 40'×20' (502 sq ft heated + 300 sq ft shop), 1 Bed, 1 Bath Barndominium (Pull-Through Shop + Open Living).
- [Plan HG-1002 — 602 Sq Ft (20×30) 1 Bed, 1 Bath Backyard ADU Floor Plan](https://hooliehaus.com/plan/hg-1002-602-sq-ft-20x30-1-bed-1-bath-backyard-adu): 30'×20' (602 sq ft heated), 1 Bed, 1 Bath Backyard ADU / Granny Flat (Open-Concept Great Room).
- [Plan HG-1047 — 322 Sq Ft (16×20) 1 Bed, 1 Bath Backyard ADU Floor Plan](https://hooliehaus.com/plan/hg-1047-322-sq-ft-16x20-1-bed-1-bath-backyard-adu): 20'×16' (322 sq ft heated), 1 Bed, 1 Bath Backyard ADU / Granny Flat (Open-Concept Great Room).
- [Plan HG-1050 — 386 Sq Ft (16×24) 1 Bed, 1 Bath Backyard ADU Floor Plan](https://hooliehaus.com/plan/hg-1050-386-sq-ft-16x24-1-bed-1-bath-backyard-adu): 24'×16' (386 sq ft heated), 1 Bed, 1 Bath Backyard ADU / Granny Flat (Open-Concept Great Room).
- [Plan HG-1004 — 1,104 Sq Ft (24×32) 2 Bed, 1 Bath A-Frame Floor Plan with Loft](https://hooliehaus.com/plan/hg-1004-1104-sq-ft-24x32-2-bed-1-bath-a-frame-cabin-with-loft): 32'×24' (1,104 sq ft heated), 2 Bed, 1 Bath A-Frame Cabin (Vaulted Great Room + Upper Loft).
- [Plan HG-1053 — 644 Sq Ft (16×28) 1 Bed, 1 Bath A-Frame Floor Plan with Loft](https://hooliehaus.com/plan/hg-1053-644-sq-ft-16x28-1-bed-1-bath-a-frame-cabin-with-loft): 28'×16' (644 sq ft heated), 1 Bed, 1 Bath A-Frame Cabin (Vaulted Great Room + Upper Loft).
- [Plan HG-1058 — 692 Sq Ft (16×30) 1 Bed, 1 Bath A-Frame Floor Plan with Loft](https://hooliehaus.com/plan/hg-1058-692-sq-ft-16x30-1-bed-1-bath-a-frame-cabin-with-loft): 30'×16' (692 sq ft heated), 1 Bed, 1 Bath A-Frame Cabin (Vaulted Great Room + Upper Loft).
- [Plan HG-1006 — 961 Sq Ft (24×40) 2 Bed, 2 Bath Modern Cabin Floor Plan](https://hooliehaus.com/plan/hg-1006-961-sq-ft-24x40-2-bed-2-bath-modern-cabin): 40'×24' (961 sq ft heated), 2 Bed, 2 Bath Modern Cabin (Open-Concept Great Room).
- [Plan HG-1054 — 450 Sq Ft (16×28) 1 Bed, 1 Bath Modern Cabin Floor Plan](https://hooliehaus.com/plan/hg-1054-450-sq-ft-16x28-1-bed-1-bath-modern-cabin): 28'×16' (450 sq ft heated), 1 Bed, 1 Bath Modern Cabin (Open-Concept Great Room).
- [Plan HG-1059 — 482 Sq Ft (16×30) 1 Bed, 1 Bath Modern Cabin Floor Plan](https://hooliehaus.com/plan/hg-1059-482-sq-ft-16x30-1-bed-1-bath-modern-cabin): 30'×16' (482 sq ft heated), 1 Bed, 1 Bath Modern Cabin (Open-Concept Great Room).
- [Plan HG-1009 — 482 Sq Ft (16×30) 1 Bed, 1 Bath Tiny Home Floor Plan](https://hooliehaus.com/plan/hg-1009-482-sq-ft-16x30-1-bed-1-bath-tiny-home-foundation): 30'×16' (482 sq ft heated), 1 Bed, 1 Bath Tiny Home on Foundation (Open-Concept Great Room).
- [Plan HG-1048 — 322 Sq Ft (16×20) 1 Bed, 1 Bath Tiny Home Floor Plan](https://hooliehaus.com/plan/hg-1048-322-sq-ft-16x20-1-bed-1-bath-tiny-home-foundation): 20'×16' (322 sq ft heated), 1 Bed, 1 Bath Tiny Home on Foundation (Open-Concept Great Room).
- [Plan HG-1051 — 386 Sq Ft (16×24) 1 Bed, 1 Bath Tiny Home Floor Plan](https://hooliehaus.com/plan/hg-1051-386-sq-ft-16x24-1-bed-1-bath-tiny-home-foundation): 24'×16' (386 sq ft heated), 1 Bed, 1 Bath Tiny Home on Foundation (Open-Concept Great Room).
- [Plan HG-1003 — 866 Sq Ft (24×36) 2 Bed, 1 Bath Garage + Apt Floor Plan](https://hooliehaus.com/plan/hg-1003-866-sq-ft-24x36-2-bed-1-bath-garage-apartment-with-shop-with-loft): 36'×24' (1,082 sq ft heated + 648 sq ft shop), 2 Bed, 1 Bath Garage with Loft / Apartment Above (Private Stair Entry + Balcony Loft).
- [Plan HG-1077 — 577 Sq Ft (16×36) 1 Bed, 1 Bath Garage + Apt Floor Plan](https://hooliehaus.com/plan/hg-1077-577-sq-ft-16x36-1-bed-1-bath-garage-apartment-with-shop-with-loft): 36'×16' (721 sq ft heated + 432 sq ft shop), 1 Bed, 1 Bath Garage with Loft / Apartment Above (Private Stair Entry + Balcony Loft).
- [Plan HG-1078 — 577 Sq Ft (16×36) 1 Bed, 1 Bath Garage + Apt Floor Plan — Drive-Through Garage + Upstairs Suite](https://hooliehaus.com/plan/hg-1078-577-sq-ft-16x36-1-bed-1-bath-garage-apartment-with-shop-with-loft-v2): 36'×16' (721 sq ft heated + 432 sq ft shop), 1 Bed, 1 Bath Garage with Loft / Apartment Above (Drive-Through Garage + Upstairs Suite).
- [Plan HG-1005 — 2,400 Sq Ft (40×60) 3 Bed, 2 Bath Shop House Floor Plan](https://hooliehaus.com/plan/hg-1005-2400-sq-ft-40x60-3-bed-2-bath-shop-house-with-shop): 60'×40' (1,401 sq ft heated + 1,000 sq ft shop), 3 Bed, 2 Bath Shop House (Shouse) (Attached Shop + Mudroom Entry).
- [Plan HG-1416 — 1,056 Sq Ft (24×44) 2 Bed, 2 Bath Shop House Floor Plan](https://hooliehaus.com/plan/hg-1416-1056-sq-ft-24x44-2-bed-2-bath-shop-house-with-shop): 44'×24' (612 sq ft heated + 444 sq ft shop), 2 Bed, 2 Bath Shop House (Shouse) (Attached Shop + Mudroom Entry).
- [Plan HG-1417 — 1,056 Sq Ft (24×44) 2 Bed, 2 Bath Shop House Floor Plan — Pull-Through Shop + Open Living](https://hooliehaus.com/plan/hg-1417-1056-sq-ft-24x44-2-bed-2-bath-shop-house-with-shop-v2): 44'×24' (612 sq ft heated + 444 sq ft shop), 2 Bed, 2 Bath Shop House (Shouse) (Pull-Through Shop + Open Living).
- [Plan HG-1008 — 1,600 Sq Ft (40×40) 2 Bed, 2 Bath Duplex Floor Plan](https://hooliehaus.com/plan/hg-1008-1600-sq-ft-40x40-2-bed-2-bath-duplex): 40'×40' (1,600 sq ft heated), 2 Bed, 2 Bath Duplex / Multi-Gen (Side-by-Side 2-Unit Duplex).
- [Plan HG-1420 — 1,060 Sq Ft (24×44) 2 Bed, 2 Bath Duplex Floor Plan](https://hooliehaus.com/plan/hg-1420-1060-sq-ft-24x44-2-bed-2-bath-duplex): 44'×24' (1,060 sq ft heated), 2 Bed, 2 Bath Duplex / Multi-Gen (Side-by-Side 2-Unit Duplex).
- [Plan HG-1421 — 1,060 Sq Ft (24×44) 2 Bed, 2 Bath Duplex Floor Plan — Side-by-Side 2-Unit Duplex](https://hooliehaus.com/plan/hg-1421-1060-sq-ft-24x44-2-bed-2-bath-duplex-v2): 44'×24' (1,060 sq ft heated), 2 Bed, 2 Bath Duplex / Multi-Gen (Side-by-Side 2-Unit Duplex).
- [Plan HG-1010 — 1,501 Sq Ft (30×50) 3 Bed, 2 Bath Ranch Floor Plan](https://hooliehaus.com/plan/hg-1010-1501-sq-ft-30x50-3-bed-2-bath-single-story-ranch): 50'×30' (1,501 sq ft heated), 3 Bed, 2 Bath Single-Story Ranch (Open-Concept Great Room).
- [Plan HG-1202 — 800 Sq Ft (20×40) 1 Bed, 1 Bath Ranch Floor Plan](https://hooliehaus.com/plan/hg-1202-800-sq-ft-20x40-1-bed-1-bath-single-story-ranch): 40'×20' (800 sq ft heated), 1 Bed, 1 Bath Single-Story Ranch (Open-Concept Great Room).
- [Plan HG-1203 — 800 Sq Ft (20×40) 2 Bed, 2 Bath Ranch Floor Plan](https://hooliehaus.com/plan/hg-1203-800-sq-ft-20x40-2-bed-2-bath-single-story-ranch): 40'×20' (800 sq ft heated), 2 Bed, 2 Bath Single-Story Ranch (Open-Concept Great Room).
- [Plan HG-1007 — 640 Sq Ft (16×40) 1 Bed, 1 Bath Container Floor Plan](https://hooliehaus.com/plan/hg-1007-640-sq-ft-16x40-1-bed-1-bath-container-home): 40'×16' (640 sq ft heated), 1 Bed, 1 Bath Container Home (Open-Concept Great Room).
- [Plan HG-1049 — 322 Sq Ft (16×20) 1 Bed, 1 Bath Container Floor Plan](https://hooliehaus.com/plan/hg-1049-322-sq-ft-16x20-1-bed-1-bath-container-home): 20'×16' (322 sq ft heated), 1 Bed, 1 Bath Container Home (Open-Concept Great Room).
- [Plan HG-1066 — 512 Sq Ft (16×32) 1 Bed, 1 Bath Container Floor Plan](https://hooliehaus.com/plan/hg-1066-512-sq-ft-16x32-1-bed-1-bath-container-home): 32'×16' (512 sq ft heated), 1 Bed, 1 Bath Container Home (Open-Concept Great Room).
- [Plan HG-1011 — 1,200 Sq Ft (30×40) 3 Bed, 2 Bath Pole Barn Floor Plan with Shop](https://hooliehaus.com/plan/hg-1011-1200-sq-ft-30x40-3-bed-2-bath-pole-barn-home-with-shop): 40'×30' (780 sq ft heated + 420 sq ft shop), 3 Bed, 2 Bath Pole Barn Home (Post-Frame) (Attached Shop + Mudroom Entry).
- [Plan HG-1198 — 800 Sq Ft (20×40) 1 Bed, 1 Bath Pole Barn Floor Plan with Shop](https://hooliehaus.com/plan/hg-1198-800-sq-ft-20x40-1-bed-1-bath-pole-barn-home-with-shop): 40'×20' (520 sq ft heated + 280 sq ft shop), 1 Bed, 1 Bath Pole Barn Home (Post-Frame) (Attached Shop + Mudroom Entry).
- [Plan HG-1199 — 800 Sq Ft (20×40) 1 Bed, 1 Bath Pole Barn Floor Plan with Shop — Pull-Through Shop + Open Living](https://hooliehaus.com/plan/hg-1199-800-sq-ft-20x40-1-bed-1-bath-pole-barn-home-with-shop-v2): 40'×20' (502 sq ft heated + 300 sq ft shop), 1 Bed, 1 Bath Pole Barn Home (Post-Frame) (Pull-Through Shop + Open Living).
- [Plan HG-1012 — 1,122 Sq Ft (28×40) 2 Bed, 2 Bath Modular Cottage Floor Plan](https://hooliehaus.com/plan/hg-1012-1122-sq-ft-28x40-2-bed-2-bath-modular-cottage): 40'×28' (1,122 sq ft heated), 2 Bed, 2 Bath Modular / Prefab Cottage (Open-Concept Great Room).
- [Plan HG-1055 — 450 Sq Ft (16×28) 1 Bed, 1 Bath Modular Cottage Floor Plan](https://hooliehaus.com/plan/hg-1055-450-sq-ft-16x28-1-bed-1-bath-modular-cottage): 28'×16' (450 sq ft heated), 1 Bed, 1 Bath Modular / Prefab Cottage (Open-Concept Great Room).
- [Plan HG-1060 — 482 Sq Ft (16×30) 1 Bed, 1 Bath Modular Cottage Floor Plan](https://hooliehaus.com/plan/hg-1060-482-sq-ft-16x30-1-bed-1-bath-modular-cottage): 30'×16' (482 sq ft heated), 1 Bed, 1 Bath Modular / Prefab Cottage (Open-Concept Great Room).