Planning a pole barn for a garage, workshop, equipment storage or livestock? Tell us the size and what it's for, and we'll connect you with an independent post-frame builder who works Bismarck-Mandan and south-central North Dakota. The referral is free.
Why post-frame buildings are popular around Bismarck
A pole barn (post-frame building) is held up by large posts or laminated columns set in the ground or on concrete piers, tied together with girts and roof trusses and covered with steel. Because the posts carry the load, there's no need for a full perimeter foundation, and wide clear spans are easy. That makes them a cost-effective choice for garages, shops, farm storage and even finished living space. The National Frame Building Association is the trade group for the industry and publishes design and construction guidance.
What it typically costs
Angi's 2026 guide puts the average pole barn at $27,500, with most projects between $15,000 and $50,000, or about $15 to $40 per square foot. Angi lists a 30 by 40 at $18,000 to $32,000 and a 40 by 60 at $30,000 to $55,000; HomeGuide's ranges run higher for finished buildings ($18,000 to $48,000 for 30 by 40, $36,000 to $96,000 for 40 by 60). Concrete floors, insulation, doors, windows and electrical move the number most. See the cost guide.
Snow and wind
North Dakota winters are hard on buildings: heavy snow, drifting and strong winds. Ask every builder for the design snow and wind loads in writing, and make sure posts and footings go below the local frost depth your building department requires. Inside Bismarck and Mandan, accessory buildings face city zoning rules; rural Burleigh and Morton county properties are often more flexible.
How the referral works
- Tell us the rough size, use, location and timeline.
- We pass it to an independent pole barn builder serving Bismarck-Mandan and south-central North Dakota.
- They contact you, review the site and give you a written quote.
We're a referral service, not a builder. Builders are independent and set their own prices.
Services
Areas we cover
Bismarck, Lincoln, Wilton, Sterling, Mandan, New Salem and other communities in Bismarck-Mandan and south-central North Dakota. See service areas.