metal garage ceiling
Back To Blog

Design Your Own Metal Building With Our Free Online 3D Builder

Bulldog Steel Structures "How To Use 3D Builder"

Whether you need a metal garage, workshop, barn, RV cover, or something completely custom, sometimes it’s easier to visualize than explain. Thankfully, you can put your pencil and scratch paper away because we now have a free 3D builder that helps bring your vision to life.

Here’s how to use it:

1. Enter Your Location

Screenshot of 3D builder with "Enter Delivery Zip Code" box open to choose your state.

When you first open the 3D builder, you’ll be asked to choose the state where the building you’re designing will be. This is important for two reasons:

  1. Some features are only available in certain areas.
  2. Pricing varies by state.

Providing your state allows you to design a building for your area accurately and allows our building specialists to get you an accurate quote when you submit your design.

2. Choose Your Style, Size & Sides

Screenshot of 3D builder open to 3D image of building with Style, Size, and Sides options on right side.

After you click “start building,” you’ll see a standard 20’x20’x12′ carport waiting for you to make it your own.

On the right side of the screen, you’ll see a list of options, and the easiest way to use the program is to start from the top to the bottom of that list.


 Style choice 3d design builder

When you click “Style,” you’ll get to choose what type of building and roof style you want. If you know you want an enclosed building, we recommend choosing “Garage” and leaving the roof style at “Vertical Style.”

The garages come completely open, so if you add center storage, that’s an extra room that will be closed off from the rest of the building. You can add those to the garage’s back, left, or right.

Side note: Choosing the installation surface won’t change your design, but it will help your building specialist know how to assist you better when they speak with you.


Size 3D design builder

The “Size” tab is where you’ll choose the size of your building. You can select the structure’s:

  • Width: In increments of 1′ up to 60′
  • Length: In increments of 5′ up to 150′
  • Height: In increments of 1′ up to 16′

The widest steel building we can do is 60′ wide, but we can make a structure as long as your heart desires, even though our builder cuts off at 150′.


Sides 3D design builder

When you click on “Sides & Ends,” if you’ve chosen the garage style, you’ll see five section options: Front lean, back lean, left lean, center section, and right lean.

A “lean” refers to a lean-to, which some people know better as an extended roof. Lean-tos are essentially half of a building added to the side or end of your garage and can be left open, partially enclosed, or fully enclosed.

Side note: If you include a lean-to, you can go back to the “Size” tab and choose what size you want.

When you choose the option “center section,” that’s where you can choose if you would like the ends and sides of the main unit (garage) to be open, partially enclosed, or fully enclosed.

Take the next step
Request a Quote Today

3. Additional Options

Additional options for 3D design builder

Under “Additional Options,” if you have any panels on your building, you’ll be given the option to keep them horizontal or change them to vertical siding or horizontal lap siding.

Side note: Any building wider than 30′ won’t have the option for standard horizontal paneling and will automatically be vertical paneling. Horizontal lap siding is available for buildings of all sizes in the areas where it’s an option.

The remaining options under “Additional Options” won’t change the design in front of you but will help the building specialist in quoting your building.

If you have any questions about these options and their benefits, contact our building specialists at (888) 551-2156.

4. Time To Design

If you’ve gotten down to the “Doors, Windows, and Frameouts” and “Colors” options, you’re ready for arguably the most fun part of this process!


Doors, windows, and frameouts options in 3D design builder.

Once you click on this tab, there are two ways you can add a door, window, frameout, or garage door to your building:

  1. You can click on the wall where you’d like to place a feature and then click the item on the right side. Once added to your building, you can drag it wherever you want on the wall.
  2. You can click and drag the item from the right and place it wherever you want on the building.

Side note: If you don’t see the garage door size option on the list, you can put a frameout instead for the size you need and then clarify that you’d like a door there instead when you submit the design.


Color options in 3D design builder.

Color garage doors aren’t available everywhere, but no matter where you’re located, you can choose the color you’d like for the roof, trim, side walls, and end walls.

No color costs more than the other.

Side note: Choosing a two-tone (wainscot) on the walls will be an additional charge ONLY if it’s done on walls that have vertical paneling.

5.   Submit for a Quote

Screenshot of 3D builder with "Submit for Quote" screen open.

Once you’ve chosen your colors, you’re ready to submit your design to our team for a quote. There’s another tab that says “Structure Details,” but that’s just the breakdown of your design, which will be emailed to you when you submit your design.

Whether you click “Save” or “Submit for Quote,” your information will still be sent to the building specialists at Bulldog Steel Structures.

If there’s enough information, they’ll send you a quote, and if they need clarification on anything, they’ll call you and then send a quote.

Take the next step
Request a Quote Today


Our free 3D builder is an excellent tool for you to get a visual of the design you have in your head, but we know you may not have the time to sit down and design your building.

If so, you can also describe the building to our building specialists at (888)-551-2156 or online, and they’ll design the building and get a quote sent to you.

What Our
Customers Are Saying

I would recommend bulldog steel 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 timel...

- 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 t...

- Bruce J.

Bryan Ordonez with Bulldog Buildings was great to work with. Every email or message I sent, he was quick to respond and I got what I wanted. I hate that we had to deal with material issues due to covid but he kept me up to date on issues and end da...

- Tony & Debbie S.

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 pick...

- 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...

- 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 who...

- 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...

- Theressa 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 a...

- David T.
Read More
Ready to take the next step? Request A free
Get Started

delivering & installing
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.

See Service Area
See Service Area