The straight frame of the flat bed trailer facilitates optimum utilization of the trailer bed and assures flexibility when transporting construction equipment. It has a smooth exterior frame and large ramps for maximum operator comfort. Load safety is assured by easily recognizable, intuitive, versatile pulling equipment on the straight bed, providing an easy overview and maximum operator safety. The sturdy frame construction also results in a favorable load capacity ratio. The zinc-coated coloring results in low VOC emissions, a long useful life, and therefore low life cycle costs.