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SKU: GB1659Up to 43% Off30x40 Steel Garage With Lean-to
Starting at$20,683*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
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Delivery, certifications & load requirements
Overview
About the 30x40 Steel Garage With Lean-to
The 30x40 Steel Garage with Lean-To is built for maximum functionality—combining enclosed security with open-air convenience. With a 30x40 fully enclosed garage and an attached 12x40 lean-to, this structure gives you the flexibility to store vehicles inside while keeping additional equipment, trailers, or outdoor tools covered and easily accessible.
Engineered with a vertical roof system, this building ensures efficient water runoff, reduced maintenance, and long-term durability. The two 10’x10’ roll-up garage doors allow smooth access for trucks, tractors, and equipment, while the walk-in door provides everyday convenience.
The lean-to extension acts as a covered workspace, RV parking area, or shaded storage zone—perfect for projects that need airflow and accessibility. Built using a 14-gauge galvanized steel frame and 29-gauge vertical panels, this garage delivers strength, weather resistance, and performance in all seasons.
Whether you're managing a farm, running a workshop, or upgrading your property storage, this combo structure gives you more space and more value in one smart design. Call our building experts to order your custom metal garage today 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 | Walk-in door | 1 × 36"×80" |
| Windows | 2 | Rust-through warranty | 20 years |
| Panel Warranty | 10-Year Paneling Warranty | Workmanship | 30 days |
| Installation | Professional, included | Service area | Nationwide |
| Area | 1200 Sq. Ft | Lean-to | 1 |
| Wainscot | Earth Brown | Door Color | High Gloass White |
| Roof Color | Earth Brown | Trim Color | Earth Brown |
| Wall Color | Sandstone | Peak Height | 15' |
| Intended Use | Garage, Workshop, Storage, RV Parking, Equipment Shelter | Lean-to Size | Lean-To Size |
| Certification | Built to Meet Local Building Codes | Top Use Cases | Vehicle storage, tractor parking, workshop space, RV/boat shelter, outdoor workspace |
| Walk-in Doors | 1 | Frame Material | 14 Gauge Galvanized Steel Frame |
| Included Parts | Steel frame, roof panels, wall panels, trim, anchors, hardware (varies) | Panel Material | 29 Gauge Vertical Metal Panels |
| Primary Material | Metal | Structure Design | Clear Span Garage with Side Lean-To |
| Design Highlights | Multi-functional layout, modern two-tone finish, expanded usable area | Roll up Door Size | (2) 10’ x 10’ Roll-Up Garage Doors for vehicle access |
| Walk-in Door Size | (1) 36” x 80” Walk-In Door for convenient entry | Weather Resistance | Rust resistant, Rain resistant, Wind resistant, UV resistant |
| Highlighted Features | Garage + lean-to combo, dual large doors, high clearance, covered side space | Installation Surface | Concrete |
| Customization Options | Additional lean-tos, enclosed sides, doors, windows, insulation, color upgrades, certifications | ||
| 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 × 36"×80" | ||
| Rust-through warranty | 20 years | ||
| Workmanship | 30 days | ||
| Service area | Nationwide | ||
| Lean-to | 1 | ||
| Door Color | High Gloass White | ||
| Trim Color | Earth Brown | ||
| Peak Height | 15' | ||
| Lean-to Size | Lean-To Size | ||
| Top Use Cases | Vehicle storage, tractor parking, workshop space, RV/boat shelter, outdoor workspace | ||
| Frame Material | 14 Gauge Galvanized Steel Frame | ||
| Panel Material | 29 Gauge Vertical Metal Panels | ||
| Structure Design | Clear Span Garage with Side Lean-To | ||
| Roll up Door Size | (2) 10’ x 10’ Roll-Up Garage Doors for vehicle access | ||
| Weather Resistance | Rust resistant, Rain resistant, Wind resistant, UV resistant | ||
| Installation Surface | Concrete |
Can't Find the Right Fit? Design Your 30x40 Steel Garage With Lean-to 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 Lean-to – 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 With Lean-to
What is the benefit of a lean-to garage?
A lean-to adds covered outdoor space for parking, storage, or workspace—without increasing full enclosure costs.
How much does a 30x40 garage with lean-to cost?
Typically ranges between $15,000 to $35,000+, depending on customization, certification, and location.
Can the lean-to be enclosed later?
Yes, the lean-to can be partially or fully enclosed in the future based on your needs.
Is this suitable for RV or boat storage?
Yes, the 12x40 lean-to provides ample covered space for RVs, boats, trailers, or tractors.
Do I need a concrete slab for both sections?
A slab is recommended for the garage; the lean-to can also use gravel or concrete, depending on usage.
Is installation included?
Yes, delivery and professional installation are included in most service areas.
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.