We are the side dump experts. For nearly 30 years, the mission of SmithCo Side Dump Trailers has been to design and build the world’s best trailers with superior stability, easier unloading, and faster cycle times than conventional dump trailers. Headquartered in Le Mars, Iowa, SmithCo produces more side dump trailers and models than any other company. Our trailers provide solutions to our customers’ hauling needs in agriculture, construction, demolition, mining, and waste. The company was founded on the values of honesty, integrity, and outstanding customer service. We live these values every day by building side dump trailers that are stronger, last longer and command the highest resale value.