CMD Commercial Truck and Trailer Sales - New and Used Commercial Semi Trucks, 18 Wheelers, Tractor Trailers, Dump Trailers and Live Floor Trailers - Competitive Pricing. Truckers throughout the U.S. know they can rely on CMD to get their rigs headed in the right direction. That's because we're experts in the used semi tractor-trailer industry. We sell higher-quality pre-owned Class 8 trucks and straight trucks along with a wide variety of new and used trailers. Whether you're a single owner-operator, small fleet owner, private fleet, common carrier, power leasing company or government agency, we have the over-the-road tractor and van, flat and specialty trailing equipment you're looking for. Financing is available for qualified buyers. Browse our website or come down and take a look at our inventory. We're conveniently located in Northeast Florida on US 1 near I-295 and the Port of Jacksonville, with easy access to Mississippi, Alabama, Georgia, South Carolina, North Carolina, and all throughout Florida. Let CMD help you find the right equipment for business.