A 30×30 metal garage 30×30 offers 900 square feet of clear-span space. That is enough room for two cars, tools, shelves, and a workbench. When you shop for metal garages, getting the right features matters. We at Bull Buildings help customers find the best metal building for their needs. We work with over 26 manufacturers to match you with the right structure.
Short answer: a 30×30 metal garage has 900 square feet of clear-span floor with no interior posts, enough for two cars plus a workbench and storage. Look for a strong frame, a solid anchoring system, doors and windows that fit your use, and a roof style that suits your weather.
Here are the top features to look for when shopping for a 30×30 metal garage.
30×30 garage features at a glance
| Feature | What to look for | Effect on price |
|---|---|---|
| Frame and steel gauge | Rust-resistant steel; a lower gauge number is thicker and stronger. Choose thicker steel for high wind or heavy snow | Thicker steel costs more |
| Anchoring | Anchor bolts into a concrete slab, or rebar and ground anchors | Slab and anchors are added to the total |
| Doors | Large roll-up door for trucks or RVs, plus a walk-in door | Each extra door adds cost |
| Windows | Natural light and ventilation | Each window adds cost |
| Roof style | Standard (budget, mild weather) or vertical (sheds snow and water more easily) | A vertical roof costs more |
| Insulation | Comfort for a workshop or year-round use | Adds cost |
Not sure which features you need? Compare our 30×30 metal building options or see our single-car and metal garage pages for other sizes.
Strong Frame and Steel Gauge
The frame is the backbone of your garage. Look for high-quality steel that resists rust and handles heavy loads. Many 30×30 buildings use 14-gauge or 12-gauge steel framing. A lower gauge number means thicker, stronger steel. If you live in an area with high winds or heavy snow, choose a thicker gauge. Some buildings are certified to withstand wind gusts up to 140 mph. Make sure your garage meets local building codes for safety.
Reliable Anchoring System
A garage needs to stay put in strong weather. Ask about the anchoring system. Some manufacturers anchor the building to a concrete slab using anchor bolts. Others use rebar and ground anchors. A solid anchor system keeps your building secure and prevents shifting. This is one feature you do not want to skip.
Customizable Door and Window Options
Your garage should work the way you need it to. Look for options to add roll-up doors, walk-in doors, and windows. A large roll-up door makes it easy to park trucks or RVs. A walk-in door gives you quick access without opening the big door. Windows add natural light and ventilation. Customizing these features helps you get the most out of your space. For a building this size, a 2 car metal garage configuration is very popular.
Roof Style That Fits Your Climate
The roof style affects how well your garage handles rain and snow. A standard roof is budget-friendly and works fine in mild weather. A vertical roof, on the other hand, lets snow and water slide off more easily. If you live where it snows or rains a lot, a vertical roof is a smart choice. You can also choose colors and trim to match your property.
What About the Cost
Many people ask us how much it costs to build a 30×30 garage. The answer depends on a few things. In 2026, a basic 30×30 metal building shell typically costs between $13,500 and $17,000, based on current market data from industry sources. A high-quality vertical roof 30×30 structure from a top manufacturer starts near the higher end of that range due to ongoing steel price adjustments.
When you add a concrete slab, delivery, and installation, the total often lands between $20,000 and $32,000. A concrete slab alone adds about $6 to $12 per square foot in 2026, according to industry averages. For a 900-square-foot building, that comes out to $5,400 to $10,800 for the foundation. Other upgrades like thicker steel, extra doors, or insulation will add more. The final price also varies by your location and local labor rates.
At Bull Buildings, we simplify the process for you. We collect multiple quotes from our network of manufacturers so you can compare options and pick what fits your budget. We focus on giving you clarity at every step, from choosing features to understanding the final price. Whether you need a basic shell or a fully customized garage, we are here to help. Your 30×30 project starts with one conversation with us.
30×30 cost summary (estimates)
| Item | Estimate in this article |
|---|---|
| Basic building shell | $13,500 to $17,000 |
| Concrete slab (900 sq ft) | $5,400 to $10,800 (about $6 to $12 per square foot) |
| Shell plus slab, delivery and installation | $20,000 to $32,000 |
| Upgrades (thicker steel, extra doors, insulation) | Add to the total |
These are estimates and change with location, labor rates and steel prices. Ask us for a current quote for your site.
Frequently asked questions
How much does a 30×30 metal garage cost?
As estimated above, the building shell is about $13,500 to $17,000, and the total with slab, delivery and installation is about $20,000 to $32,000. The final price varies by location, steel gauge, doors and options. Get a quote for your zip code.
How many cars fit in a 30×30 garage?
Two cars fit comfortably with room for tools, shelves and a workbench, as described above. A midsize car is about 16 ft long and 6 ft wide, so the 30 ft width leaves room beside them. Measure your own vehicles and plan door sizes accordingly.
Do I need a permit for a 30×30 garage?
Very likely. A 30×30 building has 900 square feet, well above the 200 square foot limit the model International Residential Code (2021 edition) uses for permit-exempt one-story detached accessory structures, and local rules often differ. Check with your local building office; see do metal buildings need a permit.
Source: City of Federal Way, quoting IRC Section R105.2. Checked October 2026.
Can you add a loft to a 30×30 metal garage?
Some buyers do, but a loft changes the structural design and the price, because the frame needs extra bracing for the added weight. Ask the manufacturer for engineered drawings that include the loft before you order.
Make the Smart Choice
A 30×30 metal garage 30×30 gives you room to park, store, and work. Focus on a strong frame, good anchors, custom doors, and the right roof for your area. Knowing how much it costs to build a 30×30 garage helps you plan your budget with confidence.
Many of our customers also use their garage as a metal building workshop space for hobbies or small business tasks. With the right partner, you get a garage that lasts for decades. Contact us today, and let us find the right metal building for your property. We make sure you get several options so you can choose the best one for your needs.
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