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SKU: GB1681Up to 43% Off20x30 Metal Garage
Starting at$12,824*Final prices vary by location and customization options.
- Width
- 20'
- Length
- 30'
- Height
- 10'
- Roof
- Vertical
- 20-year rust-through warranty
- Financing & RTO Available
- BBB A+ Accredited
- Since 1997 · 100K+ buildings
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Delivery, certifications & load requirements
Overview
About the 20x30 Metal Garage
This 20x30 garage kit gives you 600 sq. ft. of enclosed steel space, plus a 10x30 left lean-to for another 300 sq. ft. of covered side storage.
The main garage works well for a vehicle, truck, tools, mower, ATVs, motorcycles, farm supplies, or a small workshop. The lean-to gives you quick covered space for firewood, trailers, outdoor tools, equipment, or anything you want under roof without using up the main garage floor.
This building has a 12-foot height, vertical roof, 3:12 roof pitch, and an estimated 14 ft 6 in. peak height. It is also 150 MPH wind and 35 PSF snow certified, which makes it a strong choice for buyers who need a code-ready garage with better weather ratings.
The layout includes a 12x12 garage door, 36x80 walk-in door on the left wall, 2 30x30 windows on the left wall, and black wainscot for a cleaner finished look. Every building is custom made, so you can adjust the size, height, doors, windows, lean-to layout, colors, insulation, anchors, and certified options based on your property and local code needs.
Delivery and professional installation are included. Call Garage Buildings to get your 20x30 garage kit quote.
- Vertical roof built to local code3/12 pitch sheds rain and snow fast.
- 14-gauge frameGalvanized steel; 12-gauge upgrade available.
- Braces and anchorsOn every leg for added stability.
Product details
Specifications, Colors & Buying Guide
| Width | 20' | Length | 30' |
|---|---|---|---|
| Height | 12' | Floor area | 600 sq ft |
| Capacity | 2 standard vehicles | Roof style | Vertical |
| Roof Pitch | 3/12′ Roof Pitch | Roof Length | 31' |
| Structure | Clear span | Frame | 14-gauge galvanized (12-ga upgrade) |
| Panels | 29-gauge | Walls | Horizontal, fully enclosed |
| Gable ends | Fully enclosed | Anchoring | Braces & anchors on every leg |
| Garage doors | 2 × 8'×8' | Walk-in Door | 1 |
| Windows | 1 | Rust-through warranty | 20 years |
| Panel warranty | 10 years | Workmanship | 30 days |
| Installation | Professional, included | Service Area | Nationwide |
| Area | 600 SQFT | Brand | Garage Buildings |
| Lean-to | 1 | Best use | Vehicle storage, tool storage, workshop, farm utility storage, trailer cover, mower storage, ATV storage |
| Material | Galvanized Steel | Wainscot | Black |
| Warranty | 20-Year Rust-Through | Delivery | FREE Delivery to Your Building Site |
| Durability | Braces & Anchors on Every Leg For Longer stability | Roof color | Black |
| Trim Color | Black | Wall Color | White |
| Frame Gauge | 14-Gauge (12-Gauge upgrade available) | Garage Door | 1 |
| Panel Gauge | 29-Gauge | Peka Height | 14.5' |
| Window Size | (2) 30×30 inch Windows on the Left Wall | Lean-to Size | Left Lean-to 10×30′ (Center) |
| Certification | Built to Local Code | Installation | FREE Installation on Your Pad |
| Small workshop | The 600 sq. ft. main space gives room for a workbench, tool chest, compressor, and project area. | Vehicle storage | Good for 1 vehicle with extra room for tools, shelves, and equipment. |
| 2D Floor Planner | Yes | Garage Door Size | 12×12 ft Garage Door |
| Lean-to coverage | The 10x30 lean-to works well for firewood, trailers, equipment, outdoor supplies, or quick-access storage. | Walk-in Door Size | 36×80 inch Walk-in Door on Left Wall |
| Installation Surface | Concrete | Truck or equipment access | The 12x12 garage door gives better clearance than a standard 8x8 or 9x8 door. |
| Farm and landowner storage | Useful for mowers, ATVs, small tractors, feed, tools, and repair gear. | ||
| Length | 30' | ||
| Floor area | 600 sq ft | ||
| Roof style | Vertical | ||
| Roof Length | 31' | ||
| Frame | 14-gauge galvanized (12-ga upgrade) | ||
| Walls | Horizontal, fully enclosed | ||
| Anchoring | Braces & anchors on every leg | ||
| Walk-in Door | 1 | ||
| Rust-through warranty | 20 years | ||
| Workmanship | 30 days | ||
| Service Area | Nationwide | ||
| Brand | Garage Buildings | ||
| Best use | Vehicle storage, tool storage, workshop, farm utility storage, trailer cover, mower storage, ATV storage | ||
| Wainscot | Black | ||
| Delivery | FREE Delivery to Your Building Site | ||
| Roof color | Black | ||
| Wall Color | White | ||
| Garage Door | 1 | ||
| Peka Height | 14.5' | ||
| Lean-to Size | Left Lean-to 10×30′ (Center) | ||
| Installation | FREE Installation on Your Pad | ||
| Vehicle storage | Good for 1 vehicle with extra room for tools, shelves, and equipment. | ||
| Garage Door Size | 12×12 ft Garage Door | ||
| Walk-in Door Size | 36×80 inch Walk-in Door on Left Wall | ||
| Truck or equipment access | The 12x12 garage door gives better clearance than a standard 8x8 or 9x8 door. |
Can't Find the Right Fit? Design Your 20x30 Metal Garage in 3D
Customize roof styles, colors, dimensions, doors, windows, insulation, lean-tos and certifications with our free 3D Building Designer before requesting a quote.
Flexible Payments
Affordable Payment Options
Two simple ways to pay for your 20x30 Metal Garage – with or without a credit check.
HFSFinancial
Rent-to-Own
Bad credit? No credit? No problem.- Up to
- $20,000
- Terms up to
- 60 mo
- Approval
- Same day
- EZPay Buildings48-month terms
- RTO NationalNo credit check
- HeartlandUp to 60 months
FAQ
Frequently Asked Questions about 20x30 Metal Garage
How much does it cost to build a 20x30 garage?
A 20x30 garage gives you 600 sq. ft. of enclosed space. Cost depends on roof style, height, garage doors, walk-in doors, windows, lean-tos, insulation, anchors, steel gauge, slab, and local wind or snow certification. This 20x30 garage kit has a 12-ft height, vertical roof, 12x12 garage door, lean-to, windows, and 150 MPH + 35 PSF certification, so it should be priced as a stronger custom garage, not a bare basic shell.
What does a 20x30 metal building cost?
A 20x30 metal building can start lower as an open carport-style structure and cost more as a fully enclosed garage. Public 2026 guides commonly show broad ranges because doors, framing, installation, slab, and certified engineering change the final number fast. For this Garage Buildings model, the certified rating, 12-ft height, vertical roof, lean-to, 12x12 door, walk-in door, windows, and wainscot all affect pricing.
Is a 20x30 garage big enough for 2 cars?
A 20x30 garage can fit 2 smaller vehicles, depending on door placement and how much room you want between them. For daily use, I’d call it better as 1 vehicle plus storage or 1 vehicle plus a workshop area. If you drive trucks or SUVs, a wider garage usually feels better.
How many square feet is a 20x30 metal garage?
A 20x30 metal garage has 600 sq. ft. of floor space. That’s enough for vehicle storage, tools, lawn equipment, ATVs, motorcycles, shelves, or a small workbench area.
Is it cheaper to build a metal garage or a wooden garage?
A metal garage is usually the better long-term value for storage, vehicles, farm equipment, and workshops. Steel doesn’t rot, warp, or attract termites like wood can. Wood can match certain home styles, but it usually takes more upkeep over the years. Current comparison guides also show prefab metal garages often price lower than comparable wood garages.
Do I need a concrete slab for a 20x30 metal garage?
A concrete slab is the best surface for an enclosed garage, especially if you’re parking vehicles, storing tools, or using the space as a workshop. Some metal buildings can go on gravel or other prepared surfaces, but enclosed garages usually perform better on concrete. Local code may also decide what surface is required.
What size garage door is best for a 20x30 garage?
For this 20x30 garage kit, the 12x12 roll-up garage door is a strong choice because it gives better clearance than a smaller 8x8 or 9x8 door. That helps with taller trucks, tractors, trailers, equipment, and shop access.
Do I need a permit for a 20x30 garage?
Maybe. Permit rules depend on your city, county, foundation, building size, wind rating, snow load, anchoring, and use. A 20x30 enclosed garage often needs a permit in many areas. Since this model is certified for 150 MPH wind and 35 PSF snow load, it’s a good fit for buyers who need engineered specs for local code.
Essential Resources
Before You Buy
Everything you need to make a confident decision on your metal building purchase.
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