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20x30 Steel Garage | Custom Metal Garages for Sale
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20x30 Steel Garage

SKU: GB1690

20' W × 30' L × 10' H
Vertical Roof
600 sq ft
Financing Available
No Credit Check RTO

Starting at

$8,350*

Delivered & installed — final price varies by location.

*Accessories shown are not included in the base price

20' × 30' × 10'

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 20x30 steel garage gives you 600 sq. ft. of enclosed steel space for a car, truck, mower, tools, farm supplies, motorcycles, ATVs, or a small work area.

The 20-foot width works well for single-vehicle storage with room left over for shelves, toolboxes, or lawn equipment. The 30-foot length gives you deeper space behind the vehicle, which helps if you want a workbench, storage bins, or farm gear inside.

This garage has a 10-foot eave height, vertical roofing, horizontal paneling, one 8x8 garage door, and 2 36x80 walk-in doors. The garage door handles vehicle and equipment access. The 2 walk-in doors make daily entry easier from more than one side of the building.

Shown in Tan with Pebble Beige trim, this garage fits well beside a home, farm shop, side lot, or rural property.

Every building is custom made. You can change the size, height, colors, roof style, doors, windows, insulation, anchors, panel layout, and certified wind or snow options based on your property and local code needs.

Delivery and professional installation are included. Call Garage Buildings at +1 (866) 751-0875 to get your 20x30 steel garage quote.

Technical Details

Specifications

SKUGB1690
Frame Gauge14-Gauge (12-Gauge upgrade available)
Panel Gauge29-Gauge
MaterialGalvanized Steel
Area600 sq. ft.
Width20'
Height10'
Length30'
Best forVehicle storage, tools, lawn equipment, farm supplies, motorcycles, ATVs, and workshop use
DeliveryFREE Delivery to Your Building Site
Roof StyleVertical
Roof colorPebble Beige Trim
Roof pitch3/12'
Trim ColorPebble Beige Trim
Wall ColorTan
Garage Door1
Roof Length31'
Wall PanelsHorizontal Paneling
Design notesGood depth for storage, 2 daily-access doors, clean Tan and Pebble Beige finish, useful for homes, farms, rural lots, and side-yard storage
Intended useVehicle storage, home garage, farm storage, equipment storage, tool storage, small workshop
Service AreaNationwide
Walk-in Door2
Building typeSteel garage
Installation FREE Installation on Your Pad
Top use casesCar storage, truck storage, mower storage, motorcycle storage, ATV storage, tool storage, farm supply storage, small workshop, backyard storage
Included partsSteel frame, roof panels, wall panels, trim, 8x8 garage door, 2 walk-in doors, anchors, hardware, delivery, and installation
2D Floor PlannerYes
Garage Door Size(1) 8’x8′ Garage Door
Vehicle capacity1 vehicle plus storage space
Walk-in Door Size(2) 36”x80” Walk-in Doors
Main build details20x30 enclosed steel garage, 600 sq. ft. of space, 10-foot eave height, vertical roof, horizontal paneling, 8x8 garage door, 2 walk-in doors
Weather protectionBuilt to help keep vehicles, tools, and stored items covered from sun, rain, wind, debris, and daily outdoor exposure
Workmanship warranty30 days
Customization optionsGarage door size, walk-in door placement, windows, colors, height changes, insulation, anchors, panel layout, roof style, and certified wind or snow options
Durability & StrengthBraces & Anchors on Every Leg For Longer stability
Rust-through warranty20 years

Can't Find the Right Fit? Design Your 20x30 Steel Garage in 3D

Customize your 20x30 Steel 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.

Design in 3D

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Rent-to-Own — No Credit Check

Bad credit? No credit? No problem. Get your building now and pay monthly. Our trusted RTO partners — EZPay Buildings (exclusive 48-month terms for renters), RTO National, and Heartland (up to 60 months) — offer no-credit-check, same-day approval for amounts up to $20,000.

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Got Questions? We've Got Answers

What can a 20x30 steel garage be used for?
A 20x30 steel garage can store a car, truck, mower, tools, motorcycles, ATVs, farm supplies, storage bins, or small workshop gear.
How much space does this 20x30 garage provide?
This garage gives you 600 sq. ft. of enclosed steel space. The 30-foot length gives extra room for shelves, tools, lawn equipment, or a workbench behind the vehicle.
Is a 20x30 garage big enough for a car?
Yes. A 20x30 garage works well for 1 standard vehicle with extra storage space. For 2 vehicles, a wider garage usually feels better.
What doors come with this garage?
This building includes one 8x8 garage door and 2 36x80 walk-in doors.
Why choose a vertical roof?
A vertical roof helps rain, snow, leaves, and debris move off the roof more easily. It’s a good choice for garages used for vehicles, tools, and storage.
Can I customize this 20x30 steel garage?
Yes. You can change the size, height, colors, doors, windows, insulation, anchors, panel layout, roof style, and certified wind or snow options.
How much does it cost to build a 20x30 garage?
A 20x30 garage gives you 600 sq. ft. of enclosed space. The cost depends on the roof style, height, garage doors, walk-in doors, windows, insulation, anchors, steel gauge, installation surface, and local wind or snow rating. A simple 20x30 garage with basic doors will cost less than one with taller side height, insulation, extra windows, certified drawings, or upgraded framing. Concrete is usually priced separately, so include slab cost when planning your full project budget.
What does a 20x30 metal building cost?
A 20x30 metal building cost depends on whether it is open, partially enclosed, or fully enclosed. An open carport-style building is usually the lower-cost option. A fully enclosed 20x30 metal garage with doors, windows, trim, and certification will cost more. Your ZIP code also matters because delivery area, installation rules, wind rating, snow load, and permit requirements can change the final price. The best way to price it is to quote the exact layout you want.
Is it cheaper to build a metal garage or a wooden garage?
A metal garage is usually the better long-term value for vehicle storage, tools, farm equipment, and workshop use. Steel doesn’t rot, warp, or attract termites like wood can. Wood can fit certain home styles, but it often needs more upkeep over time. Metal garages are popular because they are fast to install, easier to maintain, and can be customized with doors, windows, colors, insulation, and certified options.

Essential Resources

Before You Buy

Everything you need to make a confident decision on your metal building purchase.

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