Common Barndominium Sizes

You’ve decided to build a barndominium, but now the question arises: what size do I need? For those unfamiliar with the construction industry, it can be hard to sort through a list of dimensions and actually decipher what will provide you with the space you need. With a barndominium, this question becomes even more important: what size will give you enough space to support your desired living space?

To simplify things, we’ll break down common barndominium sizes into three categories: small, medium, and large. We’ll also cover how these dimensions translate into total square footage and possible layouts, and how that all fits into your budget.

If you’d like personalized support, feel free to contact us. As experienced barndominium builders, we’ll listen to what you’re looking for and walk you through potential size options and floor plans that will be the right fit for your needs.

What is the Average Size of a Barndominium?

Most barndominiums range from 1,200 to 3,000 square feet, with typical dimensions including 30×40, 30×60, and 40×60. These are the most common, as they offer space for multiple bedrooms and bathrooms, making them ideal for young couples and families looking for a starter home. 

However, the best size will ultimately depend on your specific requirements, including size, layout, budget, and customization options.

What are the Standard Barndominium Sizes?

Standard barndominium sizes are set according to common post-frame building industry specifications. While a barndominium can be completely customizable, most builders work with these dimensions to simplify the design, ordering, and construction process. Standard widths range from 20 to 60 feet, and standard lengths can range from 30 to 60 feet.

Below are the standard barndominium sizes, grouped by small, medium, and large, to help you determine which option best aligns with your needs.

Small Barndominium Sizes and Prices

Small doesn’t mean sacrificing space. These sizes and layouts are ideal for accessory dwelling units (ADUs) or to support young couples or small families, providing ample space for 2- to 3-bedroom and 1- to 2-bathroom layouts. 

If one of these sizes or layouts aligns with what you’re looking for, check out the models listed below that meet these specifications.

Medium Barndominium Sizes and Prices

These sizes are ideal for families with one to two children or for individuals seeking additional living space. Check out the models below, which match the sizes, layouts, and prices listed above.

Large Barndominium Sizes and Prices

These larger dimensions support families with two to three children or provide office space for those who work from home. If you’re searching for layouts with ample living space, check out the models listed below.

Are Barndominium Sizes Customizable?

Yes, the above sizes are just standard options; you can absolutely customize your barndominium to fit your needs. You can create a custom barndominium by completing this quote sheet, or you can contact us to learn more about our custom barndominium sizing options.

Factors to Consider When Choosing a Barndominium Size

If you’re still having trouble pinning down which size is right for you, here are some crucial factors to weigh while making your decision:

1. Household Needs

The most important consideration is how much space you’ll need to accommodate your desired layout and your family’s needs. Consider how many people will live in your home, whether you want office space, how you plan to use it, and how many guests you plan to entertain. This will help you determine the number of rooms you need, your desired total square footage, and the ideal layout.

It’s also important to consider how you plan to use it. Accessory dwelling units (ADUs) are typically limited to a certain square footage, usually capped at 1,000 to 1,200 square feet, making a smaller barndominium size more suitable. However, if you plan to use it as your primary residence, you may want to consider a larger size.

2. Budget

Barndominiums are a popular option because they often reduce the costs associated with a traditional home. However, the larger the barndominium or the more customization options you add, the higher the price will be. Look for a size that provides the needed space but still fits within your budget.

3. Zoning

The zoning district you live in often sets specific sizing restrictions for primary and accessory dwelling units. There are typically minimum and maximum square footage and setback requirements that will impact the size of your barndominium. For help determining the zoning requirements in your area, check out our guide to barndominium regulations in Tennessee, which features the relevant zoning authority to contact regarding these standards. 

4. Lot Size

Similarly, the size of your property will determine how large your barndominium can be. Not only must it meet setback and easement requirements, but it must also fit within your property boundaries or be setback a certain distance from your primary residence if you plan to build an ADU. 

You’ll also want to account for any additions you may want to make in the future, ensuring you have enough space for an attached pole barn garage or other expansions. 

What Barndominium Size Do You Need?

Now that these factors are in mind, it’s time to choose the barndominium size that best suits your needs. You can choose from any of the models above that best fit your needs, or opt for a custom option. 

Troyer Post Buildings is here to support you through the process. Shop any of the stock models listed above or contact us for assistance in determining the right size for you.