A loading ramp for a vehicle that includes at least three articulated sections. The ramp is assembled to and stored on a floor of the vehicle. The ramp is extended from the vehicle with at least one section being retained on the floor. The sections outboard of the vehicle are retained in alignment at a ramp angle with the first section being pivoted relative to the last floor retained section to the ramp angle. A power extension and retraction device may be provided that drives the loading ramp reciprocally relative to the vehicle. Side edge guards are provided on the sides of the loading ramp and may be folded over when the loading ramp is stored.