Permit-ready detached garage plan sets, from a compact 1-car up to a 4-car Craftsman. Every set is a 12-sheet, 11×17 construction package drawn and checked by an ICC-Certified Building Official (and former home builder), with the 2021 IRC section cited at every structural decision, a real wall section, the braced-wall portal detail at the door opening, and a complete materials takeoff.
Most garage plans online are pretty renders with thin details that stall the first time a plans examiner opens them — especially at the wide overhead-door wall, where the bracing has to be a real portal frame. These are drawn the way an examiner wants to see a set: design criteria on the cover, closed dimension strings, the CS-PF portal detailed and scheduled, code citations you can check, and a bill of materials that matches the drawings. Pick a size below and buy it right here for an instant PDF download — or open the same set on Etsy if you would rather check out there.
A compact one-car garage that still leaves a full side wall for a workbench and storage. Stick-framed rafters at 16″ o.c. with a full-size cut template on the roof sheet, a 9′ carriage-style overhead door, and a board-and-batten gable end.
Two cars side by side under a single wide 16′ door, with a charcoal standing-seam awning over the opening and floodlights at the front corners. 13 trusses at 24″ o.c., and the door wall is carried by a CS-PF portal frame — detailed and scheduled, not hand-waved.
The full-size two-car: the same 16′ carriage door, charcoal standing-seam awning, and corner floodlights as the Bexley, with four more feet of width. That is the room to open both car doors and still run a workbench along the back wall without giving up a bay.
The deep two-car: the same 16′ carriage door and charcoal standing-seam awning as the Caldwell, stretched to 30 feet of depth — six extra feet for a full workshop or storage bay across the back wall without giving up either parking bay. 16 trusses at 24″ o.c. over a CS-PF portal door wall.
The only two-car in the line with TWO separate doors, so one car is never parked behind the other and the 3′-4″ braced pier between them gives you real wall for a bench or an opener. One continuous 23′ charcoal standing-seam awning runs unbroken across both doors, with a downlight tucked under it over each — 14 trusses at 24″ o.c. over a CS-PF portal door wall.
Nine hundred square feet, square on the lot, with TWO 9′ doors on the gable-front wall so neither car parks behind the other. Thirty feet of depth leaves a full bay of shop behind both vehicles rather than a walkway — 16 trusses at 24″ o.c. on a 10:12 pitch over 2×6 walls and a slab.
Four bays behind twin projected cross-gable bays, so a 48-foot front wall does not read as one flat box. Four 9′ carriage doors, 10′ walls for a lift or overhead storage, gooseneck barn lights, and cornice returns — 27 trusses at 24″ o.c.
| Plan | Sq ft | Bays | Style | Overhead doors | Roof | Notable | Price | |
|---|---|---|---|---|---|---|---|---|
| 14×24The Alcott | 336 | 1-Car | Gable | One 9′ carriage door | Stick-framed | Board-and-batten gable | $29 | View plans → |
| 20×24The Bexley | 480 | 2-Car | Gable | One 16′ carriage door | Trussed | Door awning + corner floodlights | $29 | View plans → |
| 24×24The Caldwell | 576 | 2-Car | Gable | One 16′ carriage door | Trussed | Door awning + corner floodlights | $29 | View plans → |
| 24×30The Denby | 720 | 2-Car | Gable | One 16′ carriage door | Trussed | Extra-deep 30′ bay + door awning | $34 | View plans → |
| 28×26The Ellison | 728 | 2-Car | Gable | Two 9′ carriage doors | Trussed | Two separate doors + one continuous awning | $34 | View plans → |
| 30×30The Fairhaven | 900 | 2-Car | Gable | Two 9′ carriage doors | Trussed | Square 900 sq ft — the deepest two-door bay | $34 | View plans → |
| 48×28The Whitmore | 1,344 | 4-Car | Craftsman | Four 9′ carriage doors | Trussed | Twin cross-gable bays, 10′ walls | $29 | View plans → |
Plans are sold through our Etsy shop (ProjectCalcShop) as instant digital downloads — from $29. More sizes (3-car and larger) are being added. Links open in a new tab.
Size a garage by how many vehicles park in it, then add room to open doors and walk around them. Quick guide:
Every overhead-door wall is braced with a CS-PF portal frame, not a plain sheathed wall — the code method that actually holds a wide opening against wind. The bays and pier widths are tuned so each braced panel meets its minimum length; the arithmetic is on the sheets.
Gable is the classic detached-garage look — a clean peaked roof with a board-and-batten gable end and a carriage-style overhead door. The 8:12 pitch reads premium and gives full attic space overhead.
Craftsman is the eave-front, wider line: the ridge runs parallel to the street and the front wall steps out into projected cross-gable bays over the doors, with gooseneck barn lights, carriage doors, and cornice returns. It is the upgrade look for a 3- or 4-car garage that faces the road.
Building it yourself? These free ProjectCalc tools cover the estimating math for a garage slab, framing, and roof:
Every sheet cites the 2021 IRC section it satisfies, with the design criteria (30 psf ground snow, 115 mph ultimate wind) on the cover, closed dimension strings, a true wall section, the braced-wall portal detail at the door opening, and a materials takeoff that matches the drawings. They are drawn and checked by an ICC-Certified Building Official — the same kind of official who reviews permit applications. Always confirm local amendments (frost depth, wind and snow loads) with your building department.
A 12-sheet 11×17 PDF construction set: cover and design criteria, floor plan, a monolithic slab-on-grade foundation with a frost turndown, exterior elevations, roof framing (with a rafter cut template on the stick-framed sizes), a typical wall section, the door-wall and opening framing (including the CS-PF portal frame), general notes and code schedules, and a complete materials list. It is an instant download after purchase and prints at 11×17 or letter.
Almost always, yes. Unlike a small shed, a detached garage is a substantial structure and nearly every jurisdiction requires a permit — for the slab, the framing, and often the electrical. These plans are drawn to be handed straight to a building department: verify the submittal requirements and any local amendments with your city or county.
The door wall uses a CS-PF portal frame (2021 IRC Figure R602.10.6.4) — a continuous wood-structural-panel panel each side of the opening, sheathed in a 3-inch nailing grid with a header-to-jack-stud tension strap and the correct anchor bolts and plate washers. That is the detail most online garage plans skip, and it is exactly what lets a wide door opening pass a plans review. Every set draws and schedules it.
These are DETACHED garage plans. A free-standing detached garage does not require a fire separation from the house unless it sits within 3 feet of the dwelling or a lot line (R302.1 / R302.6). If you plan to attach the garage to your home, the fire-separation and door requirements change — check with your building department before you build.
The 2021 International Residential Code, at 30 psf ground snow, 115 mph ultimate wind (Exposure B), and 1500 psf presumptive soil. If your local snow or wind loads are higher, verify with your building department before you build — the plans tell you exactly which tables govern so an examiner can check the numbers.
Because these are instant digital downloads, all sales are final. But ask me anything before or after your purchase and I will make it right — email review@projectcalc.app if you bought here, or message me through Etsy if you bought there.
Plans drawn and reviewed by Brent J., an ICC-Certified Building Official. Not a sealed engineering document — verify local amendments, frost depth, and wind / snow loads with your building department.
Looking for something smaller? See our permit-ready shed plans (8×8 to 12×20).