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SKU: GB1585Up to 43% Off30x40 Premium Metal Building
Starting at$20,328*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 Premium Metal Building
This 30x40 premium metal building gives you 1,200 sq. ft. of enclosed steel space for vehicles, tools, equipment, farm supplies, ATVs, mowers, trailers, or a working shop setup.
The 30-foot width gives you room for parking, storage, and equipment access. The 40-foot length gives you enough depth for workbenches, shelves, tool chests, or a small shop layout without crowding the floor.
The attached 12-foot lean-to adds covered side space for outdoor equipment, firewood, trailers, farm supplies, or anything you want under roof but outside the main enclosed area.
This building has a 12-foot height, vertical roof system, 2 10x10 roll-up garage doors, 1 side roll-up door, and 1 walk-in door. The vertical roof helps rain, snow, leaves, and debris move off the building better. The side roll-up door is useful when you need quick access to mowers, tools, ATVs, or shop equipment without opening the main doors.
Built with a 14-gauge steel frame and 29-gauge metal panels, this building is made for homeowners, landowners, farmers, and small business owners who need secure storage with room to work.
Every building is custom made. You can change the size, height, colors, lean-to layout, garage doors, walk-in 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 to get your 30x40 metal building quote.
- 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 years | Workmanship | 30 days |
| Installation | Professional, included | Service area | Nationwide |
| Area | 1200 SQFT | Kits | No |
| Brand | Garage Buildings | Gauge | 14 GA (2½”) |
| Lean-to | 1 | Wainscot | Gray |
| Door Color | High Gloss White | Roof Color | Gray |
| Trim Color | Gray | Wall Color | Light Stone |
| Garage Door | 3 | Wall Panels | 29-Gauge Metal Panels |
| Lean-to Size | 12′ Lean-To | Certification | Built to Local Code |
| Frame Material | Galvanized Steel | Included Parts | Steel frame, panels, trim, anchors, hardware |
| Structure Type | A-Frame | Panel Warranty | 10-Year Paneling Warranty |
| 2d Floor Planner | Yes | Gaarge Door Size | (2) 10’x10′ Roll-Up Garage Doors |
| Structure Design | Main Garage + Side Covered Extension | Vehicle Capacity | 2–4 Vehicles + Equipment |
| Design Highlights | Spacious garage layout, extended lean-to coverage, modern two-tone finish | Weather Resistance | Rust resistant, wind resistant, rain resistant, UV resistant |
| American Made Steel | Yes | Installation Surface | Concrete |
| Customization Options | Extra doors, windows, insulation, colors, 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 | ||
| Gauge | 14 GA (2½”) | ||
| Wainscot | Gray | ||
| Roof Color | Gray | ||
| Wall Color | Light Stone | ||
| Wall Panels | 29-Gauge Metal Panels | ||
| Certification | Built to Local Code | ||
| Included Parts | Steel frame, panels, trim, anchors, hardware | ||
| Panel Warranty | 10-Year Paneling Warranty | ||
| Gaarge Door Size | (2) 10’x10′ Roll-Up Garage Doors | ||
| Vehicle Capacity | 2–4 Vehicles + Equipment | ||
| Weather Resistance | Rust resistant, wind resistant, rain resistant, UV resistant | ||
| Installation Surface | Concrete | ||
| Wall Panel Orientation | Vertical |
Can't Find the Right Fit? Design Your 30x40 Premium Metal Building 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 Premium Metal Building – 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 Premium Metal Building
What is the benefit of the 12′ lean-to?
The lean-to provides additional covered space for parking, equipment storage, or outdoor work areas without increasing the main building footprint.
Is this building suitable for commercial use?
Yes, this structure is ideal for small businesses, workshops, storage units, or agricultural operations.
Do I need a concrete foundation?
A concrete slab is highly recommended for maximum stability and longevity, though other installation options may be available.
Can I customize doors and layout?
Absolutely. You can add more doors, windows, insulation, or adjust the layout based on your needs.
Is the building certified for weather conditions?
Yes, it can be engineered to meet local wind and snow load requirements depending on your location.
How long does installation take?
Most installations are completed within 1–2 days after site preparation.
How much space does this 30x40 building provide?
The main building gives you 1,200 sq. ft. of enclosed steel space. The attached 12-foot lean-to adds extra covered side space for outdoor storage or equipment coverage.
What is the benefit of the attached lean-to?
The lean-to gives you covered space outside the main enclosed building. It works well for trailers, mowers, firewood, tools, farm supplies, side parking, or quick-access equipment.
What doors come with this building?
This building includes 2 10x10 roll-up garage doors, 1 side roll-up door, and 1 walk-in door. That gives you access from more than one side of the building.
Why is the side roll-up door useful?
The side roll-up door helps when you need to move mowers, ATVs, tools, or shop equipment in and out without opening the main garage doors.
Why choose a vertical roof system?
A vertical roof helps rain, snow, leaves, and debris slide off more easily. It’s a strong choice for a 30x40 building used for storage, workshop space, or farm equipment.
What steel does this building use?
This building uses a 14-gauge steel frame and 29-gauge metal panels. These are common choices for durable metal buildings with low upkeep.
How much does a 30x40 metal building cost?
A 30x40 metal building can cost anywhere from the low five figures to much higher once you add doors, windows, insulation, certification, anchors, colors, and interior options. The final price depends on your ZIP code, roof style, height, steel gauge, door layout, installation surface, and local wind or snow requirements. For an accurate installed price, it’s best to price the exact 30x40 layout you want.
How much does a 30x40 concrete slab cost?
A 30x40 concrete slab is 1,200 sq. ft., and the cost depends on slab thickness, site grading, base prep, concrete strength, rebar or wire mesh, labor, and local concrete rates. A basic 4-inch slab usually costs less than a thicker reinforced slab made for heavier trucks, tractors, lifts, or commercial use. Always confirm slab specs with your local contractor before ordering the building.
Is it cheaper to build a metal building or wood?
A metal building is usually cheaper to maintain over time than a wood building. Steel doesn’t rot, warp, attract termites, or need the same level of painting and upkeep. Wood can make sense for certain residential styles, but for garages, carports, workshops, farm storage, and equipment buildings, metal is often the better long-term value.
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.