WFR responded to a fire at Dakota Finishing at approximately 9:30 pm last night. Firefighters were able to make entry into the building and extinguish the cardboard that was on fire in the building. The fire destroyed some equipment and smoke had filled the buildings. WFR cleared the building of smoke and checked for extension to make sure that all fire was extinguished. Crews were on scene for approximately 2 hours. Cause of the fire is under investigation.