Steel Building Kits for Sale: Buy Factory-Direct and Save
If you’re looking for steel building kits for sale, buying factory-direct is the smartest way to get the best price without sacrificing quality. Mason Steel Buildings sells pre-engineered steel building kits directly to buyers across all 50 states — no dealers, no markups, no middlemen.
Every kit is custom-engineered for your location, shipped from one of 20 factory and distribution hubs nationwide, and backed by the best warranty in the industry.
Why Buy Your Steel Building Kit From Mason Steel
- Factory-Direct Pricing — You buy straight from the source. No dealer network, no added markup. Just honest, competitive pricing on every kit.
- Price Match Guarantee — Find a better price on a comparable steel building kit? We'll match it.
- Ships to All 50 States — 20 factory and distribution hubs across the country mean fast delivery to your property no matter where you are.
- Shipping Included — Every steel building kit ships to your site at no additional cost.
- 60-Year Structural Warranty — Every kit is backed by an industry-leading 60-year structural warranty plus a 40-year rust-through perforation warranty.
- Custom-Engineered for Your Location — Every kit is designed and stamped for your local wind, snow, and seismic code requirements.
Call us today for expert steel construction
What Types of Steel Building Kits Are Available?
Mason Steel offers kits for every use case. Explore our full range of steel building types:
- Residential Steel Homes & Barndominiums — Full-time residences, shop-house combos, and weekend retreats
- Garage & Workshop Buildings — Single and multi-car garages, hobby shops, and trade workshops
- Warehouse & Commercial Buildings — Storage facilities, distribution centers, and commercial operations
- Agricultural Buildings — Equipment storage, hay barns, livestock shelters, and farm buildings
- Horse Barns & Riding Arenas — Custom equestrian facilities built for horses and riders
- Aircraft Hangars — Private and commercial hangars engineered for any aircraft size
- Self-Storage Buildings — Multi-unit storage facility kits for investors and property owners
- Churches & Recreational Buildings — Community spaces, gyms, and gathering halls
What's Included in Every Steel Building Kit
- Red iron rigid I-beam steel frame
- 26-gauge PBR panels on roof and walls
- Galvalume steel for superior rust and corrosion resistance
- Fully engineered and stamped drawings for your location
- Anchor bolt plans for your concrete contractor
- Detailed assembly instructions
- Shipping to your site included
Popular Steel Building Kit Sizes for Sale
- 30x40x12 Red Iron Steel Building — 1,200 sq ft. Great for garages, workshops, and storage.
- 30x50 Metal Building — 1,500 sq ft. Ideal for larger garages, agricultural use, or small commercial spaces.
- 40x60x16 Steel Building — 2,400 sq ft. Popular for commercial operations, large workshops, and agricultural buildings.
- 60x40 Red Iron Steel Building — 2,400 sq ft. Wide open footprint for drive-through layouts and large equipment storage.
Not seeing the size you need? Use our 3D Building Designer to configure your exact dimensions — then request a quote.
How to Buy a Steel Building Kit From Mason Steel
- Request a Free Quote — tell us your size, location, and intended use
- A Mason Steel consultant will walk you through your options and confirm pricing
- Your building is custom-engineered for your zip code
- Permit drawings are ready in approximately 2.5–3 weeks
- Production runs 6–16 weeks depending on size and time of year
- Your kit ships from the nearest hub directly to your property
Want to understand the full process before you order? Visit our Order Process page for a complete step-by-step breakdown.
Customization Options
- Custom dimensions and wall height
- Roll-up doors, walk-in doors, and framed openings
- Standard or insulated windows
- Insulation packages for any climate
- Lean-tos and side extensions
- Wide color selection for walls, roof, and trim
Frequently Asked Questions
A: Every Mason Steel kit includes stamped engineering drawings certified for your local wind, snow, and seismic requirements. Mason Steel also coordinates directly with your local building department to support the permitting process. Visit our FAQ page for more detail.
A: Every kit includes a 60-year structural warranty and a 40-year rust-through perforation warranty — the best in the industry. Learn more on our warranty page.
Buy Your Steel Building Kit Today
Mason Steel Buildings delivers factory-direct steel building kits to properties across all 50 states. Request a Free Quote and get pricing tailored to your size, location, and specs. Or design your building online using our 3D Building Designer before you call.
Phone: 877-76-STEEL