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Welcome Friends

 4D MFG is an industry leader when it comes to affordable show barn systems and gates. With over 20 years experience and over 1,000 show facilities/barns completed, we are ready to bring your vision to life. 


A Little History

Our Products

In 1993 the Dollahan family started building Hay and Grain feeders. At that time, they were very into horses. The family spent every weekend on the road running and gaming. As the years went by, they sold Hay and Grain feeders in several retail locations across the United States. In 2011, Russell and Mollie Dollahan took over the family business. They kept things the same for while, but instead of spending their time with horses, their kids wanted to show pigs. That's how the 4D stock pens were born. 

As the years went by, time wasn't available to keep all product lines alive. So now 4D is fully focused on show stock penning systems. Find all our products below, but just because talking about it makes us sentimental, we included a pretty old photo of our kids with our original product because we believe that your roots matter.

Heavy Duty Show Pen System
Wall Mount Hinge
Economy Show Pen System
Questions? Email US! 
collapsable feeder 5.jpg
Collapsible Hay Feeder


Hi! We're the Dollahan's. We live in Knox, Indiana, but we operate 4D in North Judson, IN. We have two beautiful daughters, who have kept us busy for years. Maddie is a sophomore at Purdue and Ella is a sophomore in high school. We are a generational family of 4-Hers. We show mainly pigs, but have had some success raising other livestock as well. Ella is currently on a steer kick, but we'll see! We have enjoyed every moment of building show stock systems and meeting all the wonderful people in livestock industry. We understand how busy family life is and understand the value of your dollar. We pride ourselves on our lower prices and building equipment to make raising livestock easier.  There is no job to big or to small, contact us today and let's get that barn done!


Contact Us

0520 E 625 S 

North Judson, IN 46366




We, 4D MFG LLC, It’s employees and/or representatives are not responsible for any and all claims, demands, damages, actions, or suits of any kind relating to any and all injuries and or damages of any kind to persons, animals, and all property: including but not limited to vehicles, trailers, barns/facilities arising from the purchase, use, or misuse of material or equipment. 4D MFG LLC is not liable or responsible for securing equipment in vehicles/trailers, theft, damages, or any liability after purchase of equipment. We are not liable for any loss of revenues, expenses incurred for labor, loss of use of equipment, or replacement costs. Receipt of equipment and/or payment by purchaser is acknowledgment of these terms. If you do not agree to these terms, please refrain from purchasing our equipment. We reserve the right to refuse or cancel any order for any reason whatsoever.  

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