Top 5 Most Popular Steel Building Sizes (and What They Cost in 2025)

Building Specialist
Aug 29
2 min read

http://www.THENCBUILDERS.com

When it comes to designing a steel building, one of the first questions people ask is: “What size should I get?” The answer depends on what you’ll use it for — whether it’s a garage, workshop, barn, or even a small business space.

At The NC Builders, we help customers every day choose the right steel building size to fit their needs and budget. To make it easier, here are the 5 most popular steel building sizes in 2025 and what you can expect to pay for each.

1. 12x24 Steel Building – Perfect for Small Garages

If you need space for a single vehicle, lawn equipment, or a small workshop, a 12x24 steel building is a great choice. It’s compact, affordable, and more durable than a wooden shed.

💰 Estimated Cost: Starting around $5,000–$7,000 (depending on customizations).

2. 24x30 Steel Building – The Homeowner Favorite

The 24x30 steel building is one of the most popular sizes for residential garages and workshops. It provides enough room for two vehicles plus storage, making it a perfect fit for families.

💰 Estimated Cost: $10,000–$15,000 depending on upgrades like vertical panels, walk-in doors, and roll-up doors.

3. 30x40 Steel Building – The Workshop Standard

A 30x40 steel building is one of our top requests. It’s big enough for a mechanic shop, woodworking business, or a spacious home workshop. Farmers also love this size for small equipment storage.

💰 Estimated Cost: $15,000–$25,000 depending on features and gauge upgrades.

4. 40x60 Steel Building – Ideal for Small Businesses & Farms

The 40x60 steel building is perfect for commercial use, large equipment storage, or a full-sized barn. With 2,400 square feet of space, this size offers flexibility for just about any project.

💰 Estimated Cost: $25,000–$40,000, depending on customization and site requirements.

5. 50x100 Steel Building – Big Projects, Big Possibilities

Need major space? The 50x100 steel building is a powerhouse. Popular for warehouses, commercial shops, and large farm operations, this size gives you 5,000 square feet of open floor space.

💰 Estimated Cost: $60,000+ depending on layout and features.

Why Choose a Steel Building?

Steel buildings aren’t just about size — they’re about strength, durability, and customization. With options for roof styles, colors, doors, windows, and wainscoting, you can make your building fit your exact needs. Plus, all of our steel buildings come with: