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20x30x12 Metal Garage | custom 20x30 Steel Buildings for Sale
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Metal Garages

20x30x12 Metal Garage

SKU: GB1698

20' W × 30' L × 12' H
Vertical Roof
600 sq ft
Financing Available
No Credit Check RTO

Starting at

$10,532*

Delivered & installed — final price varies by location.

*Accessories shown are not included in the base price

20' × 30' × 12'

600 sq ft · Vertical Roof

Free delivery & professional installation
20-year rust-through warranty
No credit check RTO available
18+ color options available
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Delivery, certifications & load requirements

This **20x30x12 metal garage** offers **600 sq. ft. of versatile enclosed space**, perfect for housing vehicles, tools, lawn equipment, motorcycles, ATVs, storage bins, farm supplies, or even a compact workshop. With a 20-foot width, this garage comfortably accommodates one vehicle while providing extra side space. The 30-foot length allows for ample depth, making it ideal for shelving, lawn mowers, tool chests, workbenches, or securely storing equipment. The **12-foot height** of this garage ensures greater clearance than standard low-profile buildings. This feature is beneficial for those needing taller doors, overhead storage, access for larger equipment, or simply more usable space inside. Opting for a **vertical roof** design is particularly advantageous for a 30-foot-long garage. It facilitates better drainage of rain, snow, leaves, and debris, minimizing buildup and simplifying maintenance. Every building is custom-crafted to meet your unique needs. You can choose from a variety of options, including garage doors, walk-in doors, windows, insulation, colors, anchors, panel layouts, and certified wind or snow load configurations tailored to your property and local building codes. Delivery and professional installation are included with eligible orders. To receive your quote for the 20x30x12 metal garage, **call** Garage Buildings today.

Technical Details

Specifications

SKUGB1698
Area600 SQFT
BrandGarage Buildings
Width20'
Height12'
Length30'
Best forVehicle storage, tools, lawn equipment, motorcycles, ATVs, farm supplies, and workshop use
Best useThis building works best as a one-car garage with extra storage or workshop room. It’s a strong fit for homeowners, landowners, and farm buyers who need enclosed space without jumping into a larger building.
MaterialGalvanized Steel
Warranty20-Year Rust-Through
Delivery FREE Delivery to Your Building Site
Roof ColorBlack
Roof StyleVertical
Trim ColorBlack
Wall ColorEarth Brown
Frame Gauge14-Gauge (12-Gauge upgrade available)
Garage Door2
Panel Gauge29-Gauge
Roof Length31'
Wall PanelsVertical
Intended useVehicle storage, metal garage, equipment storage, tool storage, small workshop, farm utility storage
Service AreaNationwide
Walk-in Door1
Building typeMetal garage
CertificationBuilt to Local Code
Installation FREE Installation on Your Pad
Top use casesCar storage, truck storage, mower storage, ATV storage, motorcycle storage, tool storage, backyard workshop, farm supply storage, seasonal storage
Custom optionsGarage doors, walk-in doors, windows, colors, roof style, insulation, anchors, height changes, panel layout, frame upgrades, and certified wind or snow options
Framing Warranty20-Year Framing Warranty
Garage Door Size8'x8'
Vehicle capacity1 vehicle with storage space, or 2 smaller vehicles depending on door layout
Garage Door ColorWhite
Paneling Warranty10-Year Paneling Warranty
Walk-in Door Size36″ × 80″
Main build details20x30 enclosed steel garage, 600 sq. ft. of space, 12-foot height, vertical roof, custom door and window layout
Weather protectionBuilt to help keep vehicles, tools, and stored items covered from sun, rain, wind, snow, leaves, and daily outdoor exposure.
Installation SurfaceConcrete
Durability & StrengthBraces & Anchors on Every Leg For Longer stability
Workmanship Guarantee30-Day Workmanship Guarantee

Can't Find the Right Fit? Design Your 20x30x12 Metal Garage in 3D

Customize your 20x30x12 Metal Garage with different roof styles, colors, dimensions, garage doors, walk-in doors, windows, insulation, lean-tos, certification options, and other available upgrades.

Our free 3D Building Designer lets you personalize every detail, compare different layouts, and visualize your building before requesting a quote—helping you design the perfect structure for your property and needs.

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Got Questions? We've Got Answers

What can a 20x30x12 metal garage be used for?
A 20x30x12 metal garage can store a car, truck, mower, tools, motorcycles, ATVs, storage bins, farm supplies, or small workshop equipment.
How much does it cost to build a 20x30 building?
A 20x30 building gives you 600 sq. ft. of space. The cost depends on the roof style, height, doors, windows, insulation, anchors, steel gauge, installation surface, and local wind or snow certification. A basic open metal building costs less than a fully enclosed 20x30 garage with roll-up doors, walk-in doors, windows, trim, and certified engineering. For the right number, price the exact layout for your ZIP code.
How much would a 30x30 metal building cost?
A 30x30 metal building gives you 900 sq. ft. of usable space. The final cost depends on whether it is open, partially enclosed, or fully enclosed. Height, roof style, door sizes, windows, insulation, steel gauge, anchors, delivery area, and local code requirements all affect the price. A 30x30 with a vertical roof and garage doors will cost more than a simple carport-style building.
Are metal buildings cheaper to build?
Metal buildings are often more cost-friendly than traditional wood buildings, especially for garages, carports, workshops, farm storage, and equipment buildings. Steel does not rot, warp, or attract termites, so long-term upkeep is usually lower. Wood can work for certain residential styles, but metal is usually the better value when the main goal is vehicle protection, storage, or workspace.
How much would a 24x30 garage cost?
A 24x30 garage gives you 720 sq. ft. of enclosed space. The cost depends on the roof style, height, garage doors, walk-in doors, windows, colors, insulation, anchors, steel gauge, slab, and local certification needs. A 24x30 metal garage is a popular two-car size because it gives room for vehicles plus some storage along the walls. For an accurate installed price, quote the building with your preferred doors, roof style, height, and ZIP code.
How much space does a 20x30 metal garage provide?
A 20x30 garage gives you 600 sq. ft. of enclosed space. That gives room for one vehicle plus shelves, tools, lawn equipment, or a workbench.
Is a 20x30 garage big enough for 2 cars?
It can fit 2 smaller vehicles depending on door placement and vehicle size, but it works better as one vehicle plus storage or workshop space. For comfortable 2-car parking, a wider garage usually feels better.
Why choose a 12-foot height?
A 12-foot height gives more clearance for taller vehicles, larger garage doors, shelving, equipment, and overhead storage.
Do I need a permit for this garage?
Permit rules depend on your city, county, foundation, anchoring, building size, and use. Check local requirements before installation, especially for enclosed garages.

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