● Quick Answer
Before buying a metal building, you need to understand 15 key factors: your intended use, the right size and ceiling height, steel gauge options, local wind and snow codes, foundation requirements, permits, financing options, what’s included in the price, insulation needs, door and window placement, roof style, colors, warranty terms, how to compare quotes, and common red flags to avoid. Getting these right upfront saves thousands of dollars and prevents costly mistakes after installation.

Buying a metal building is one of the most practical investments you can make for your property, but it’s also one of the easiest places to make expensive mistakes. The wrong size, the wrong ceiling height, or the wrong foundation choice can cost thousands of dollars to fix after installation.
This buying guide walks you through the 15 most important things to know before you order a metal building, so you get exactly what you need the first time.
| Decision | Why It Matters |
|---|---|
| Define your purpose | Guides every other design decision |
| Choose the right size | Prevents outgrowing or overbuilding |
| Pick ceiling height | Determines what vehicles and equipment fit |
| Steel gauge | Affects durability and cost |
| Wind and snow codes | Required for permit and safety |
| Foundation type | Impacts lifespan and performance |
| Permits | Legal requirement in most areas |
| Financing options | Removes upfront cost barriers |
| What’s included | Prevents surprise add-on costs |
| Insulation | Add during build, not after |
| Doors and windows | Plan workflow before ordering |
| Roof style | Vertical sheds weather best |
| Colors | Match your property aesthetics |
| Warranty terms | Protects your long-term investment |
| How to compare quotes | Ensures apples-to-apples comparison |
Get a Quote Built on the Right Specs. Size, gauge, certification, doors and insulation, itemised for your site and county. |
Buying a metal building is different from traditional construction because the structure is pre-engineered, pre-cut, and delivered as a complete kit. You’re not hiring a contractor to design and build on-site; you’re ordering a specific product with specific dimensions and features.
This means your decisions happen upfront, before manufacturing begins. Once your order is in production, changes become expensive or impossible. Getting the specifications right at the quote stage is critical.
The 15 points below cover every decision you need to make before signing a contract.
Your intended use drives every other decision about your metal building. A workshop needs different features than a hay barn, and a 3-car garage needs different ceilings than an RV cover.
Define your primary purpose and any secondary uses:
If you’re torn between two uses, size up. Flexibility costs less upfront than expansion later.
The right size depends on your use case and future needs. Standard metal building sizes range from small garages to large commercial warehouses.
| Use Case | Recommended Size |
|---|---|
| Single-car garage | 12x20 to 14x24 |
| 2-car garage | 20x24 to 24x30 |
| 3-car garage + workshop | 30x40 to 30x50 |
| Workshop or hobby space | 30x40 or 40x40 |
| Small barn or farm storage | 30x40 to 40x60 |
| Full working farm barn | 40x60 to 60x80 |
| Small commercial warehouse | 40x60 to 60x80 |
| Large commercial warehouse | 60x100 or larger |
Pro tip: Add 25 to 30% more square footage than you think you need. Expansion costs significantly more than building larger upfront.
Use the 3D Estimator to visualize different sizes and see real-time pricing.
Ceiling height is the single biggest design decision for a metal building. Too short and you lose major functionality. Too tall and you spend more than you need.
| Ceiling Height | Best For |
|---|---|
| 8 to 10 feet | Basic storage, cars, SUVs |
| 12 feet | Standard garages, workshops, trucks |
| 14 feet | Lifted trucks, workshop with lifts, small RVs |
| 16 feet | Larger RVs, boats, high-bay storage |
| 18 to 20+ feet | Commercial warehouses, aircraft hangars |
For most buyers, 12 feet is the sweet spot. It handles standard vehicles and most workshop uses without a huge price jump over 10-foot ceilings.
Steel gauge affects both the strength and the cost of your metal building. The two most common options are 12-gauge and 14-gauge framing.
Lower numbers mean thicker, stronger steel. Your supplier can recommend the right gauge based on your location and intended use.
Every metal building must be engineered to meet local wind and snow load codes. These codes vary dramatically by county and climate zone.
Before you order:
Certified metal buildings cost slightly more but are often required for permit approval, insurance, and resale.
The foundation you choose affects the lifespan, stability, and resale value of your metal building. The three most common options are concrete slab, piers, and gravel pad.
| Foundation Type | Best For |
|---|---|
| Concrete slab | Garages, workshops, commercial buildings, anything with vehicles |
| Concrete piers | Pole barns, agricultural buildings, budget-conscious buyers |
| Gravel pad | Basic storage, livestock shelter, temporary buildings |
| Asphalt | Buildings on existing paved surfaces |
A reinforced concrete slab is the recommended choice for most metal buildings, especially those storing vehicles or equipment. Foundation work is typically arranged separately with a local concrete contractor and is not included in the metal building price.
Yes, in most cases. Permit requirements vary by county and municipality, but most local governments require a building permit for metal buildings above a certain size.
Steps to handle permits:
Some rural counties waive permits for farm-use buildings on qualifying acreage. Confirm this in writing before skipping the permit process.
Metal buildings have more financing options than most buyers realize. The right choice depends on your budget, credit, and timeline.
Common financing paths:
Rent-to-own is popular for buyers who want immediate delivery without upfront costs. Explore financing options to find the right fit.
Design Your Building in 3D Try sizes, ceiling heights, roof styles and colours before you commit to a spec. |
Not all metal building quotes include the same things. Before signing, confirm exactly what’s in the price and what’s extra.
Typically included:
Typically NOT included:
Ask for an itemized quote so you understand every line item before committing.
Add insulation during original construction, not after. Retrofitting insulation into an existing metal building typically costs 30 to 50% more than including it during the build.
When insulation is worth it:
When you can skip insulation:
Learn more about metal building insulation options and costs.
Plan door and window placement around your actual daily workflow, not just aesthetics. Changing door and window placement after installation is expensive and sometimes impossible.
Door planning questions:
Window planning questions:
For commercial metal buildings, consider dock-height loading doors if you’ll receive truck deliveries.
The three main roof styles for metal buildings each handle weather differently.
| Roof Style | Best For |
|---|---|
| Regular Roof | Covered carports, basic shelters, dry climates |
| A-Frame (Boxed Eave) | Residential garages, mid-sized buildings, moderate weather |
| Vertical Roof | Snow and rain climates, commercial use, long-term durability |
Vertical roofs are strongly recommended for any metal building you’ll own long-term. They shed snow, rain, and debris more efficiently than horizontal panels, reducing roof maintenance and extending the building’s lifespan.
Colors affect both aesthetics and performance of your metal building.
Practical considerations:
Match the metal building to:
Most reputable suppliers offer 15 or more standard color options at no extra cost.
Warranty terms are a quality indicator and protect your long-term investment. Compare warranty details carefully when choosing a supplier.
Industry standard warranties include:
Red flags to watch for:
Every Bulldog metal building comes with a 20-year rust-through warranty and a 1-year workmanship warranty backed in writing.
Comparing quotes properly is critical. Different suppliers include different things in their base price, making apples-to-apples comparison harder than it looks.
To compare quotes fairly:
The lowest quote isn’t always the best deal. A cheaper building with weaker steel, shorter warranty, or missing installation can cost more over time.
Watch for these warning signs when evaluating metal building suppliers:
A reputable clear span metal buildings supplier is transparent about pricing, specifications, warranty, and process.
The first step is defining your intended use. Everything else, size, ceiling height, doors, insulation, and foundation, depends on how you’ll use the building. Once you know the purpose, you can request accurate quotes and compare suppliers.
Most metal buildings are delivered and installed within 4 to 8 weeks of ordering. Commercial buildings may take 8 to 12 weeks. On-site installation typically takes 2 to 10 days depending on size.
No. Metal buildings are typically delivered with pre-engineered components and installed by the supplier’s professional crew. You do not need to hire a general contractor. You may need a local concrete contractor for the foundation.
The most affordable path is to choose a standard size, 14-gauge framing, regular roof style, and skip insulation and extras. Larger buildings often have better per-square-foot pricing than smaller ones because fixed costs spread across more space.
Yes. Rent-to-own programs let you buy a metal building without a credit check. You pay a low monthly amount over 24 to 48 months and own the building at the end of the term.
Verify the exact dimensions, gauge, roof style, doors, windows, insulation, foundation requirements, delivery date, installation details, warranty terms, total price with no hidden fees, and the supplier’s physical address and reputation.
Once manufacturing begins, metal buildings are difficult or impossible to return because they are custom-made to your specifications. Review all details carefully before approving the final design and signing the contract.
A reputable metal building supplier has a verifiable physical address, clear warranty terms in writing, positive customer reviews, engineered drawings for permits, transparent pricing, and professional installation included with every order.
Buying a metal building is a significant investment, but the right preparation makes it one of the smartest decisions you can make for your property or business. Work through the 15 points above before you sign a contract, and you will avoid the most common mistakes buyers make.
The key to success is clarity: know your purpose, your budget, your local codes, and your long-term plans. With these in place, you can choose the right size, specifications, and supplier for your project with complete confidence.
Ready to see what a custom metal building would cost and look like for your project?
Get a Free Metal Building Quote →
Or contact our team to discuss custom designs, financing, and rent-to-own options tailored to your needs.
Get a Free Metal Building Quote. Talk through size, gauge, certification and financing with a building specialist. Call 888-551-2156. |
I'm really happy with the way my building turned out! Due to living in city limits I had to make changes to my original plan but working with Bryan made it easy. He was great to work with!
Bulldog Steel Structures is fantastic. We had a 24'x40' garage built with two 10' garage doors, an entry door, two windows and fully insulated for under $16,000. The whole experience was so easy. Our salesman was Bryan Valadez. Bryan was so helpful and was easily available to answer my questions. Rebekah Aldridge handled all the documents and signing of them. The whole process was great. The building is well constructed and the crew that erected it were courteous and cleaned the worksite afterwords thoroughly. They did an excellent job in a time efficient period. Our experience with Bulldog Steel Structures was just great and we highly recommend them.
I'm in early stages, just put deposit on building. I reviewed about 10 quotes and worked with many vendors in the space to assess. Constance from Bulldog Steel Structures made the experience fabulous and was key in our decision making. It's so refreshing to see a company like this have such outstanding client facing service. We are excited and huge shout out to Constance and the team. Bravo!
I have purchased two structures/buildings from them and have been greatly satisfied. From "idea to implementation" it has gone smoothly. I love the idea of having one single point of contact (Noah) for any questions or concerns. The install crew comes in and gets right to work and the quality is the best I have seen. Highly Recommend!
I worked with Bryan Valadez in putting together my bids for a 2000 SF shop/garage. He was great to work with, very quick to respond and answered all my questions and concerns during several very thorough conversations regarding my project. I recommend you give Bulldog a shot when searching for your next building, their pricing was very good compared with some of the others, and they just seemed to have it very together for their process. Great Job, thanks Bryan. Jason
Showed up on time and excellent quality. Could not be more pleased with the results!
I called and spoke to Bryan. With some back and forth he helped me finalize the design (40x100 foot print). I placed my order and had to wait for my King County building permit to be issued. Once the slab was completed the installation team arrived with all the pieces. They got right to work and the building was completed in 8 days !!! I would highly recommend Bryan and Bulldog to any one :) Many thanks john in the pacific northwest
Great company to do business with. Would recommend them to others.
Great to deal with. Building went up with no problems.
I had a great experience with Bulldog Steel Buildings. The representatives were able to help me move from the online design to an actual building design to meet my goals. They set up the delivery and installation which turned out great. Installation was scheduled quickly after the foundation was done; and the building was completed within 2 days. Pricing was reasonable, and I'm very pleased with my new building.
Bryan was great- honest, helpful, responsive and knowledgeable. I will call him if I ever need another steel building
This company is the real deal. They go over and beyond to satisfy their customers. It is a joy to work with them. They are very knowledgeable and efficient. I looked forward to finishing my project with them.
Humberto was very responsive and it was a pleasure to work with. He went above and beyond to get delivery scheduled as soon as possible for our 30x50 building. Great company to work with.
Hey folks - these people at Bulldog are real. Noah helped me all the way through - extremely patient and knowledgeable. He answers most often and when he doesn't it's easy to get another HUMAN to speak with. I looked at several companies for this project - I settled on the right one. If you wind up doing business with Brian - you're in luck there to. Outstanding work - worthy of trust.
I purchased a 26x32 Garage from Bulldog Steel Structures they had it finished in two days. It looks really nice and the install crew was great. I’m thinking of getting another building and I will definitely contact Bryan Valadez again at Bulldog.
Great experience from start to finish. The sales process was easy and Casey helped me revise my plans several times to get the right building for my needs. Communication was excellent! The build crew was on time, friendly and professional. Beto took the time to understand what cutouts I needed and why I needed them in the sizes planned. Exceptional work. Highly recommend. Thank you!
I would recommend Bulldog Steel Structures highly. They are very professional and accommodating. Want to give special thanks to Randall Hall and also matt preslar. They were very accommodating and helping me fill out paperwork and handling things when a timely basis. The building we were very satisfied with and the installers also were very polite and had things done on a timely basis. Thanks again Randall and Matt you`ve got my five star rating
Bulldog has been great to work with. They explained everything from beginning to end. I live in the mountains of New Mexico and the staff made sure that my garage had the right support needed for this area of the country. I would highly recommend them for anyone building a new carport or gaeage!
Good design tool on their website. Great customer service.
Have had nothing but a positive experience with Bulldog! Bryan was super helpful and still is after our install! He still responds super prompt and helpful. No complaints about our structure, as it looks amazing! Installers did a great job and picked up very nicely after they were done. Highly recommend!!
I have now had my building in place for 3 months and I want to say that the whole team at Bulldog was very helpful throughout the entire process. My salesperson, Matthew, was extremely responsive. He was very helpful with the design phase, where we went back and forth with 3-4 different designs before settling on the perfect one. He always got back to me right away when I had a question. Although the delivery was delayed, understandable with the pandemic, he helped interface with Carolina Carports when I had delivery questions. So far I have no issues with the completed building. No leaks and all the doors are functioning perfectly. I would highly recommend using Bulldog for all your metal building needs.
Frank Rangel was very helpful and respectful. Also very understanding. I was pouring a concrete driveway and trying to put my down payment down. I may of got a little frustrated in the middle of it all. I could see the smile on Frank`s face the whole time! Thank you sir!
This is my second building from bulldog and I`m buying the same building , just different colors. They are great buildings that are strong and economical.
Excellent customer service during my order process, answered all my questions and they were very patient.
The website was very flexible and helped me customize my carport. The Bulldog staff was very prompt and helpful throughout the process.
Put up a RV cover for me on a concrete pad. Turned out great and the guys cleaned up after the work. Very satisfied. Would recommend these people.
I love my “She Shop.” It was amazingly easy. I sent an email, made 2 phones calls and it was done. The installation went even easier. Three guys showed up one day and finished the next. They were polite and cleaned up after themselves. My husband’s friends are all very impressed with the construction and materials used but were amazed at the reasonable price. I could not be more pleased. Thank you
I visited their website and used the 3D estimator and was able to see my building with doors, window placements, colors,and overall look. When you add or change any feature, including size, you can immediately see the result and change in price (if any). You can rotate the structure to see the overall look and framework. Once I placed my order, it was quickly and efficiently handled and the cost was lower than the estimate on the website The installers showed up early one morning and by noon the next day they had completed the structure. Everyone that comes by remarks on how nice it looks. I am very pleased with every aspect from ordering to installation.
Bulldog’s metal barns, garages, and carports are available for delivery and installation in most of the U.S. Whether you’re a homeowner in Maine, a rancher in Texas, or a small business owner in California, you’ll get to-your-door delivery and professional installation, so your building will be sturdy and reliable for years to come.
