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SKU: GB1658Up to 43% Off30x40 Steel Garage
Starting at$17,460*Final prices vary by location and customization options.
- Width
- 30'
- Length
- 40'
- Height
- 12'
- Roof
- Vertical
- 20-year rust-through warranty
- Financing & RTO Available
- BBB A+ Accredited
- Since 1997 · 100K+ buildings
Check Your Area
Delivery, certifications & load requirements
Overview
About the 30x40 Steel Garage
The 30x40 Steel Garage is a perfect blend of strength, space, and style—built to handle everything from vehicle storage to full-scale workshop use. Designed with a vertical roof system, this structure efficiently sheds water, snow, and debris, ensuring long-term durability with minimal maintenance.
With 1,200 sq ft of usable space and a 12 ft height, this garage offers ample room for cars, trucks, equipment, or business operations. The 12’x10’ roll-up garage door provides easy access for larger vehicles, while the walk-in door ensures convenient everyday entry.
Built with a 14-gauge galvanized steel frame and 29-gauge sheet metal panels, this garage delivers superior strength and reliability. The two-tone wall paneling adds a clean, modern look, making it a great fit for both residential and commercial properties.
Whether you need a dependable garage, a workshop, or a storage solution, this building is designed to perform in all seasons. Call our building experts to order your custom metal garage 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
| Width | 30' | Length | 40' |
|---|---|---|---|
| Height | 12' | Floor area | 1200 sq ft |
| Capacity | 2 standard vehicles | Roof Style | Vertical |
| Roof Pitch | 3/12 | Roof Length | 41' |
| 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 | 4 standard | Rust-through warranty | 20 years |
| Panel Warranty | 10-Year Paneling | Workmanship | 30 days |
| Installation | Professional, included | Service area | Nationwide |
| Area | 1200 Sq. Ft. | Kits | No |
| Gauge | 14 GA (2½”) | Brand | Garage Buildings |
| Windows | 3 | Roof Color | Brown |
| Trim Color | Brown | Wall Color | Tan |
| Garage Door | 2 | Wall Panels | 29-Gauge Paneling |
| Intended Use | Garage, Workshop, Storage, Commercial Use | Windows Size | (3) 30″x36″ Windows |
| Certification | Built to Local Code | Top Use Cases | Auto garage, equipment storage, workshop, small business space, hobby area |
| Frame Material | Galvanized Steel | Included Parts | Steel frame, roof panels, wall panels, trim, anchors, hardware (varies) |
| Structure Type | A-Frame | Wainscot Color | Brown |
| Garage Door Size | (2) 10’x10′ Roll-Up Garage Doors | Vehicle Capacity | 2–3 Vehicles / Equipment |
| Design Highlights | Clean exterior finish, high clearance entry, durable steel construction | Garage Door Color | High Gloss White |
| Walk-in Door Size | (1) 36″x80″ Walk-in Door | Weather Resistance | Rust resistant, Rain resistant, Wind resistant, UV resistant |
| Highlighted Features | 30x40 size, 12 ft height, heavy-duty frame, modern two-tone design | Installation Surface | Concrete |
| Customization Options | Extra doors, windows, insulation, color choices, certification upgrades | Wall Panel Orientation | Vertical |
| Length | 40' | ||
| Floor area | 1200 sq ft | ||
| Roof Style | Vertical | ||
| Roof Length | 41' | ||
| 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 | ||
| Kits | No | ||
| Brand | Garage Buildings | ||
| Roof Color | Brown | ||
| Wall Color | Tan | ||
| Wall Panels | 29-Gauge Paneling | ||
| Windows Size | (3) 30″x36″ Windows | ||
| Top Use Cases | Auto garage, equipment storage, workshop, small business space, hobby area | ||
| Included Parts | Steel frame, roof panels, wall panels, trim, anchors, hardware (varies) | ||
| Wainscot Color | Brown | ||
| Vehicle Capacity | 2–3 Vehicles / Equipment | ||
| Garage Door Color | High Gloss White | ||
| Weather Resistance | Rust resistant, Rain resistant, Wind resistant, UV resistant | ||
| Installation Surface | Concrete | ||
| Wall Panel Orientation | Vertical |
Can't Find the Right Fit? Design Your 30x40 Steel 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 30x40 Steel 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 30x40 Steel Garage
Is a 30x40 garage big enough for multiple vehicles?
Yes, it comfortably fits 2–3 vehicles along with extra space for storage or workspace.
Why choose a vertical roof garage?
Vertical roofs allow better water drainage, reduce maintenance, and increase lifespan compared to regular roofs.
Can I customize this garage?
Absolutely. You can add doors, windows, insulation, colors, and certifications based on your needs.
Do I need a concrete slab?
A concrete slab is highly recommended for stability, durability, and proper anchoring.
Is installation included?
Yes, delivery and professional installation are included in most locations.
Can this be used for commercial purposes?
Yes, it’s ideal for workshops, storage units, and small business operations.
How much does a 30x40 metal building with a concrete slab cost?
It starts from $24,000
Which foundation do you recommend?
Garage Buildings recommends concrete slab foundation to ensure structural stability.
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.