One Stop

Johnson's One Stop Shopping Service
134 Main St (HWY 27)
Seneca, Wisconsin 54654

(608) 734-3434

Post Frame

Do you need more space? Post frame building techniques have long provided a time-tested, economical means to create more storage or working space.  From small garden sheds to shops and garages to free-stall and confinement buildings, Johnson’s has everything you need to do the job right.  From custom computer designs to boom truck delivery, Johnson’s has been serving post frame customers for over 30 years!  We can help with building design, estimating and finding the right contractor for the job while constantly balancing beauty, quality and economics!  When quality counts, count on Johnson’s!  

"There is hardly anything in the world that some man cannot make a little worse and sell a little cheaper, and the people who consider price only are this man's lawful prey.” Obviously, that quote could apply to nearly any product made today. And steel building panels are no exception! At Johnson’s, we have chosen two manufacturers of steel panels that understand that our customers expect value, quality and service in every sale! Available in a large variety of colors, our steel panels are backed by one of the strongest warranties in the business today! As always, when quality counts, count on Johnson’s!

ProTec Buildings provide natural lighting and superior ventilation. You can use these buildings for any type of storage, including livestock shelters and grain storage! They are also the perfect solution for storing equipment or hay. ProTec Buildings offer unbeatable strength and durability and are engineered to meet the needs of large operations. With ProTec Buildings, you get a one-of-a-kind design manufactured right here in the USA! We are your “One-Stop” hoop building source!


“The only thing that never changes is that everything changes.” With farming methods constantly evolving, having the right barn equipment can greatly impact your bottom line. We have teamed up with knowledgeable, time-tested vendor partners, offering you quality stalls, curtains and ventilation products at very competitive prices. Solve all your animal confinement needs in ONE STOP, Johnson’s One Stop!