Profile: Sioux Steel Company manufactures commercial and farm grain system, livestock solution and pro-tech engineered buildings. Commercial roof is engineered to support in excess of 10,000 lbs at center collar. Calf warmers provides excellent care for new born calves, a ribbed bottom to easily transport the calf out of the delivery area, a raised grated floor to ensure total warm air circulation, a vent/peephole and hinged removable cover.