Self-Storage Building Kits

It’s an industry Forbes recently dubbed “recession-proof,” and when today’s entrepreneurs are looking to enter or expand an existing business within the always-thriving self-storage industry, they rely on Sunward Steel to help them get started. Our rugged, economical pre-engineered steel mini storage buildings give you the foundation you need to grow your business while providing a safe, secure space for your clients to store goods.

Self-Storage Buildings can be customized to any dimension. Here are some Popular Self-Storage Building Sizes:

  • 20×100
  • 30×100
  • 40×100
Self-Storage Buildings

Popular Self-Storage Building Sizes

20’x100’ Steel Mini Storage Buildings

One of our most popular mini storage building sizes, our 20’x100’ prefabricated steel mini storage buildings offer ideal storage solutions for today’s cost-conscious business owners. Offering unmatched strength and protection for stored goods, our buildings are easily customizable to ensure compliance with local and regional building codes. Our pre-engineered building kits also arrive at your jobsite precisely labeled and ready to erect, saving you substantially on labor costs by slashing construction time.

30’x100’ Steel Mini Storage Buildings

Economical, adaptable and easy to maintain, our 30’x100’ prefabricated metal mini storage buildings are ideal for all climates, and we can customize yours in accordance with your preferences and local building code requirements. A convenient, secure storage option for today’s increasingly consumerist society, steel self-storage facilities typically offer a considerable return-on-investment as well as a foundation for success in a recession and inflation-proof industry.

40’x100’ Steel Mini Storage Buildings

Sunward Steel is a single-source manufacturer and supplier of premium-quality pre-engineered steel self-storage buildings, and our 40’x100’ steel mini storage building is one of our most popular base models. Split into multiple, rentable bays, steel self-storage facilities are easy to erect and equally easy to maintain, standing strong in the face of harsh weather, pests and other hazards while offering unrivaled protection for stored goods.

Price Your Self-Storage Building


What Is Included With My Building Purchase

Standard Inclusions

• Engineered Certified Plans & Drawings
• Primary & Secondary Framing
• Roof & Wall Sheeting with Siphon Groove
• Complete Trim & Closure Package
• Long Life Fasteners
• Mastic Sealant
• Ridge Cap
• Pre-Marked Parts
• In House Manufacturing In One Of Our 3 Local US Factories
• Delivery to Site

 See a Complete List of Our Building Features and Warranties

Customizable Options

• Insulation Packages
• Insulated Metal Panels
• Thermal Blocks
• Doors
• Windows
• Vents
• Fans
• Skylights
• Solar Panels
• Wainscot
• Cupolas
• Gutters & Downspouts
• Exterior Finishes

Color Options
Ash Gray Steel Panels  Ash Gray
Burnished Slate Steel Building Color  Burnished Slate
Light Stone Steel Panels  Light Stone
Saddle Tan Steel Panels  Saddle Tan
Hunter Green Steel Panels  Hunter Green
  Koko Brown
Charcoal Steel Panels  Charcoal
Hawaiian Blue Steel Building Color  Hawaiian Blue
Polar White Steel Panels  Polar White
Rustic Red Steel Building Color  Rustic Red

Galvalume Plus Also Available

* Note – Actual colors may vary based on screen and monitor resolution / settings.  Color charts and / or metal color chips are available and should be reviewed before choosing final building colors.