Utility Trailer Company is the oldest privately owned and operated trailer manufacturer in the USA. Efficiency and innovation have made Utility the leading manufacturer of the highest quality standard trailers since 1914.

Utility Trailer retained Big- D to construct a 500,000 sq.-ft. heavy-duty manufacturing facility in Clearfield, Utah. At 1,460' long and 300' wide, the facility is the largest "frame-to-finish" refrigerated trailer manufacturing plant in the world. With 14 overhead doors at each end of the facility, raw materials enter through one end, and exit as finished refrigerated trailer boxes at the other end.

The structural steel building with pre-engineered skin houses over 2 miles of assembly lines — one standard and one custom. The facility contains 10 overhead monorails, 23 overhead cranes, 3 paint booths, 3 foam injection rooms, and 20,000 sq.-ft. of office and lunchroom space.