The Little Man Business, with Big Customer Service!



Building or Remodeling??

Shop first at your local Building Center!

Roundup Building Center provides personalized service for your construction and remodeling needs at all budget levels not found in "Big Box" stores.




Pole Barns

Roundup Building Center has been delivering buildings into the Tri-state area and beyond for the past 19 years.
Our delivery radius is 500 miles!
We will build to your specifications.  Whether that is with overhead doors, sliding doors, Dutch doors, horse stalls, or whatever else you might want.
We use 29 gauge steel from several suppliers such as ABC Steel, Metal Sales, Channeldrain, and Klauer Mfg.
We also use Engineered trusses
                        5 x 6 Treated Posts
                        2 x 6 sidewall girts
Please use our project material estimate form when you are needing a building and we will look forward to talking with you on how we can best serve your needs.
Thank-you for you interest in our company and  its services.    


Timbers for Pole Barns

Hills Products Group

Produces ponderosa pine boards, dimension lumber, and timbers at the Spearfish, SD location. Custom sawn lumber such as saddle tree stock for large saddle makers is also part of our milling production.

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Klauer Manufacturing

  • Galvanized/Prepainted steel gutter and downspout systems, with a complete inventory of fittings and accessories
  • Metal building trim products in a comprehensive catalog of styles and over 130 colors
  • Ridgolator ventilation systems in assorted styles, lengths and profiles
  • Galvanized steel roofing and siding


Plyco Corporation


Metal Sales


The Metal Sales formula for success is simple. First, we choose quality steel. Then, we employ cutting-edge technology and highly trained professionals in every job area from purchasing, manufacturing and inventory to sales, support services and delivery. Finally, we listen to our customers in our quest to meet their every need.