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30x40 Metal Garage | 30x40 Steel Buildings for Sale
SKU: GB1665Up to 43% Off

30x40 Metal Garage

Starting at$18,325*Final prices vary by location and customization options.
Free delivery & installDesign in 3D →

*Accessories shown are not included in the base price.

Width
30'
Length
40'
Height
12'
Roof
Vertical
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  • 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 30x40 Metal Garage

The 30x40 Metal Garage is a powerful, all-purpose structure designed for property owners who need reliable space, durability, and flexibility. With 1,200 sq ft of usable area, this garage easily accommodates multiple vehicles, equipment, or a fully functional workshop setup.

Built with a vertical roof system, it efficiently channels rain, snow, and debris away—reducing maintenance while increasing lifespan. The two 10’x10’ roll-up garage doors provide wide, convenient access for trucks, trailers, and machinery, while the walk-in door ensures easy daily entry.

Constructed using a 14-gauge galvanized steel frame and 29-gauge metal panels, this building delivers long-term strength and weather resistance. The addition of three windows enhances natural lighting, making it perfect for workspace use.

Whether you need secure vehicle storage, a home workshop, or a multipurpose utility building, this 30x40 garage is built to perform in every season. Call our building experts to order your custom metal building at the best prices.

  • 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

30x40 Metal Garage specifications
Width30'
Height12'
Capacity2 standard vehicles
Roof pitch3/12
StructureClear span
Panels29-gauge
Gable EndsFully Enclosed
Garage Doors2
Windows1
Panel warranty10 years
InstallationProfessional, included
Gauge14 GA (2½”)
Roof ColorRed
Wall ColorRawhide
CertificationBuilt to Local Code
Frame MaterialGalvanized Steel
Structure TypeA-Frame
Design HighlightsFunctional layout, wide access points, clean modern finish
Walk-in Door Size(1) 36”x80” Walk-in Door
Highlighted FeaturesSpacious 30x40 layout, dual large doors, natural lighting, heavy-duty steel frame
Customization OptionsAdditional doors, windows, insulation, colors, certification upgrades
Length40'
Floor area1200 sq ft
Roof StyleVertical
Roof Length41'
Frame14-gauge galvanized (12-ga upgrade)
WallsHorizontal, fully enclosed
AnchoringBraces & anchors on every leg
Walk-in Door1
Rust-through warranty20 years
Workmanship30 days
Service areaNationwide
Rood Pitch3/12
Trim ColorRed
Intended UseGarage, Workshop, Storage, Residential, Commercial
Top Use CasesVehicle storage, lawn equipment storage, workshop, hobby space, small business use
Included PartsSteel frame, roof panels, wall panels, trim, anchors, hardware (varies)
Vehicle Capacity2–4 Vehicles / Equipment
Garage Door ColorHigh Gloss White
Weather ResistanceRust resistant, Rain resistant, Wind resistant, UV resistant
Installation SurfaceConcrete
Wall Panel OrientationVertical Fully Enclosed

Can't Find the Right Fit? Design Your 30x40 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.

Design in 3D

Flexible Payments

Affordable Payment Options

Two simple ways to pay for your 30x40 Metal Garage – with or without a credit check.

Traditional Financing

Through our financing partners
HFSFinancial

Low monthly payments with competitive rates. Apply online and get a decision fast.

  • Competitive rates & low monthly payments
  • No early payoff penalties
  • Get approved in minutes
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Real Reviews From Garage Buildings Customers

FAQ

Frequently Asked Questions about 30x40 Metal Garage

How much does a 30x40 metal garage cost?
Typically ranges from $10,000 to $25,000+, depending on steel gauge, customization, location, and certification requirements.
How much does a 30x40 concrete slab cost?
A slab for this size (1,200 sq ft) usually costs $6,000 to $12,000, depending on thickness, site prep, and local labor rates.
Is this garage customizable?
Yes, you can customize size, doors, windows, colors, insulation, and certifications to match your exact needs.
Do I need a concrete foundation?
A concrete slab is strongly recommended for maximum durability, proper anchoring, and long-term performance.
How long does installation take?
Most installations are completed within 1–3 days, depending on site readiness and weather conditions.
Can this be used as a workshop?
Absolutely. With its wide layout, tall doors, and natural lighting, it’s ideal for workshops, repairs, and hobby use.

Essential Resources

Before You Buy

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

Talk to a Building Specialist

Not sure about sizing, roof style, or options? Our team has 29+ years of experience and will help you find exactly what you need.

(888) 234-0475Call Now