Custom Workshops
Clear-floor steel workshops sized to the work rather than to a catalogue. A 30' x 40' gives you an open span for fabrication or auto work with no centre supports in the way.
Engineered & Installed
Custom Metal Buildings
Your size, your layout, your site — engineered and installed.
A custom metal building is a steel structure engineered to dimensions and a layout you specify, rather than picked from a standard catalogue size. Bulldog Steel Structures builds custom metal buildings from 20 to 44 feet wide and up to 90 feet long — custom garage buildings, custom carports, workshops, storage combinations and barns — delivered and installed across most of the United States.
- Prices
- $10,280 to $40,000 installed
- Sizes
- 20–44' wide, 25–90' long, 9–14' eaves
- Not a kit
- Delivery and professional installation included
- Combination builds
- Garage plus storage, or a building with a lean-to
- Rent-to-own
- No credit check, plus financing
- Installs on
- Concrete, asphalt or gravel
Custom Metal Buildings
42' x 60' x 12'/9' Garage with Lean To
SKU: BOM-F2023
Starting At:
$28,500.00
Welcome to Bulldog Steel Structures, your one-stop destination for custom metal buildings built around what you actually need. We offer the best range of custom steel structures — custom garage buildings, custom carports, workshops, storage combinations, lean-to builds, and custom barns. Our structures are designed to provide unparalleled strength and durability, ensuring they meet your unique needs.
Bulldog Steel Structures is committed to providing high-quality custom steel buildings to ensure customer satisfaction. Our cost-effective services make us the perfect choice for reliable and versatile buildings customized to your needs and requirements. We value your satisfaction and strive to meet your expectations, offering exceptional customer service and professionalism from your first drawing to the day your building is installed.
What Is a Custom Metal Building?
A custom metal building is a prefabricated steel structure engineered to your dimensions and layout instead of a fixed catalogue size. Everything is variable: width, length, eave height, roof style, how many bays you get, where the doors and windows sit, and whether sections are enclosed, open or split between uses.
Most people order custom for one of three reasons. The site is an awkward shape. The standard sizes land either side of what they need. Or they want two buildings in one — a garage at the front and covered storage at the back.
What Custom Steel Structures Does Bulldog Build?
Bulldog builds custom garage buildings, custom carports, workshops, storage combinations, lean-to builds and custom barns. Every type below exists as a real, priced product on this page or in a linked category.
Garage and Storage Combinations
One building, two jobs. The 30' x 90' on this page carries 30 feet of dedicated storage; the 20' x 45' carries 15 feet.
Lean-To Builds
A single-slope roof section attached to the side or end of the main structure — the cheapest square footage available, and the easiest thing to add at order.
Custom Barns
When a standard Carolina or Seneca barn does not fit the site or the herd, we engineer one that does. The custom Seneca barn here is a 44' x 26' with a stepped 14'-11.5'-10' roof line.
Can I Get a Custom Garage Building Built to My Size?
Yes. A custom garage building is priced on width, length, and eave height as three independent numbers, so you are not forced up to the next catalogue size to get the one dimension you need.
The most common reason people order a custom garage building rather than a standard one is depth. A standard garage takes the car; a custom one takes the car plus a workbench, plus the mower, plus the space to walk around all three. Two on this page show the range — a 20' x 50' x 11' at $15,000, and a 30' x 55' x 12' at $30,600.
Height is the other one people get wrong. If a lift, an RV or a raised roll-up door is anywhere in your plans, specify the eave height now. It is the one dimension that cannot be changed afterwards without rebuilding the frame.
Do You Build Custom Carports?
Yes. Custom carports are built to the same made-to-order process as our enclosed buildings — you set the width, length, and height, choose the roof style, and decide how much of the structure is closed in.
Custom makes sense on a carport when a standard size does not cover what you park. Common reasons: an RV or a boat that needs extra height, an awkward driveway that rules out a square footprint, three vehicles side by side, or a carport that needs one closed side as a windbreak. A carport can also be ordered with an enclosed storage bay at one end — covered parking and a lockable store under a single roof.
If a standard size does fit, buy standard — it is cheaper and faster. Our regular carport range covers most driveways.
How Much Does a Custom Metal Building Cost?
Custom metal buildings on this page start at $10,280 installed and reach $40,000 for the largest. Width drives the price first, then length, then eave height, then how much of the building is enclosed. Every price below includes delivery and professional installation.
| Building | Size (W x L x H) | SKU | Starting at |
|---|---|---|---|
| Custom Building | 20' x 30' x 9' | CTM-2030 | $10,280 |
| Custom Building | 24' x 25' x 10' | CTM-8902 | $13,300 |
| Custom Garage Building | 20' x 50' x 11' | BOM-MA2023 | $15,000 |
| Building with 15' Storage | 20' x 45' x 12' | CTM-1849 | $15,700 |
| Custom Building | 30' x 40' x 12' | CTM-7613 | $19,500 |
| Garage with Lean-To | 42' x 60' x 12'/9' | BOM-F2023 | $28,500 |
| Custom Building | 30' x 55' x 12' | CTM-3771 | $30,600 |
Prices vary by state, site conditions and certification requirements. See our Pricing Disclaimer.
Service Areas — state-by-state requirements →What Sizes Can a Custom Metal Building Be?
Custom buildings on this page run from 20 to 44 feet wide, 25 to 90 feet long, with eave heights from 9 to 14 feet. Length is the cheapest dimension to extend, height is next, and width is the most expensive because it changes the frame span.
| You need | Typical size | What it holds |
|---|---|---|
| One-bay workshop | 20' x 30' | A vehicle plus a bench and tool storage |
| Custom garage building | 20' x 50' | Car and boat, or car and trailer, end to end |
| Workshop with clear floor | 30' x 40' | Open span for fabrication or auto work |
| Garage plus storage | 20' x 45' with 15' storage | Enclosed bay at one end, covered storage at the other |
| Full working building | 30' x 90' with 30' storage | Equipment, workshop and covered storage under one roof |
What Can Be Customized on a Custom Steel Structure?
Almost everything except the laws of physics. This is what a building specialist walks you through at the quote stage.
Dimensions
Width, length, and eave height, each specified independently.
Roof style
Regular, boxed eave or all-vertical. Vertical is the one to choose anywhere with real snow or heavy rain.
Sides
Fully enclosed, partially closed, or left open, section by section.
Doors and windows
Roll-up doors, walk-in doors, and windows placed where you need them, not where a template puts them.
Interior layout
Partitions, separate rooms, storage bays and workshop space within one shell.
Lean-tos
Added to either side, either end, or both.
Colors
Roof, walls, and trim chosen separately. Try combinations in the Color Planner before you order.
Certification
Engineer-certified plans where your county requires them.
Can a Garage and Storage Be Combined in One Building?
Yes, and it is usually cheaper than buying two buildings. A combination build gives you an enclosed section and an open or semi-enclosed storage section under a single continuous roof, sharing one frame and one installation.
Two are already on this page: a 30' x 90' with 30 feet of storage, and a 20' x 45' with 15 feet. The split can sit wherever you want along the length, and the storage end can be left open, closed on one side, or fully enclosed later.
30' x 90'
30 ft storage
Enclosed · 60 ft
Storage · 30 ft
20' x 45'
15 ft storage
Enclosed · 30 ft
Storage · 15 ft
How Is a Custom Building Ordered from Bulldog?
Four steps, and the first one is free. Sketch what you need, get it priced, choose how you are paying, and prepare the site.
- 1Free
Draw it.
Use the 3D designer, or describe the layout to a building specialist on 888-551-2156.
- 2Step 2
Get it priced.
We confirm the engineering, your county's certification requirements, and the installed price.
- 3Step 3
Choose payment.
Pay outright, finance, or go rent-to-own with no credit check.
- 4Step 4
Prepare the site.
Level ground on concrete, asphalt, or gravel. We deliver and install; site prep is yours.
Ready to start with step one?
Frequently Asked Questions
1. How long does it take to get a custom metal building?+
A custom building takes longer than a standard size because the drawings have to be engineered before anything is fabricated. Expect the quote and engineering stage to add time on top of normal lead times, and expect certified plans to add more again. Your building specialist will give you a current lead time for your state when they price it.
2. Is a custom building more expensive than a standard size?+
Not necessarily. A custom size close to a standard one usually prices similarly, because the cost is driven by steel and labor rather than by the word "custom". Where cost does climb is unusual spans, stepped roof lines and heavy certification requirements. The cheapest way to buy custom is to keep the width standard and vary the length.
3. Do I need a permit for a custom metal building?+
Usually yes, though requirements vary by city and county. Most enclosed buildings require a permit, and custom dimensions make it more likely your building department will ask for engineered drawings. Pulling the permit is the customer's responsibility, and we can provide the drawings they ask for. Ask your specialist whether your area requires engineer-certified plans.
4. Can a custom metal building be installed on gravel?+
Yes. Gravel is one of the three surfaces we install on, along with concrete and asphalt. Your gravel pad should be at least four inches deep, contained by a border, and extend slightly past the building's footprint. On gravel, we anchor with auger anchors rather than the concrete wedge anchors used on a slab.
5. What is the largest custom metal building you can build?+
The largest on this page is a 30' x 90', but that is a catalogue limit rather than an engineering one. Wider spans and longer runs are available through custom engineering — clear span buildings in particular can go considerably wider. Tell a specialist the span you need, and they will tell you whether it clears.
6. Can I design my own building before I call?+
Yes, and it speeds the quote up considerably. Build the size, roof style, colors, doors, and windows in the 3D designer, then send the design straight to a building specialist. Starting from a drawing rather than a description removes most of the back-and-forth.
What Our Customers Are Saying
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!
Corey Evans
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.
Mattie Roberts
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!
Max Escuder
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!
Ron Barnes
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
Jason Ford
Showed up on time and excellent quality. Could not be more pleased with the results!
Drew Hood
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
John Marcus
Great company to do business with. Would recommend them to others.
Webster Smith
Great to deal with. Building went up with no problems.
Florida Chapter POCI
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.
David Grover
Bryan was great- honest, helpful, responsive and knowledgeable. I will call him if I ever need another steel building
Allan Brown
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.
David Thomas
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.
Kelly Heckel
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.
Randall Drew
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.
Kris Phillips
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!
Damon Trim
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
Shirley M.
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!
Bruce J.
Good design tool on their website. Great customer service.
John S.
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!!
Kristie S.
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.
Mike W.
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!
Jason M.
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.
Parke H.
Excellent customer service during my order process, answered all my questions and they were very patient.
Jack D.
The website was very flexible and helped me customize my carport. The Bulldog staff was very prompt and helpful throughout the process.
Dale & Karen W.
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.
Dan and Linda I.
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
DTheressa J.
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.
David T.
Delivering & installing throughout the United States
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.
