Frontier Trailer Sales LLC is a premier trailer dealership located in Box Elder, SD, proudly serving the Black Hills region, Western South Dakota, and surrounding states along the I-90 corridor. We specialize in providing high-quality new and used trailers tailored to contractors, farmers, ranchers, and recreational enthusiasts. Our extensive inventory includes cargo/enclosed trailers, heavy-duty flatbeds, dump trailers, utility trailers, and livestock trailers from top-tier manufacturers. Also available by Appointment.