Rail system for vehicle shelving and canopies

A rail system for mounting to a vehicle, comprising:

• a frame mountable in the cargo area of a vehicle, the frame comprising a first support leg and a second support leg, each support leg having a first end adapted to attach to the vehicle and a second end;
• a first fixed rail mounted to the frame, the first fixed rail comprising:
• a front face,
• a back face,
• first and second side faces,
• a plurality of bearings mounted to one or more faces of the first fixed rail, and
• a back plate mounted to the back face of the first fixed rail, the back plate comprising a plurality of locking apertures;
• a first sliding rail slidably mounted on the first fixed rail for longitudinal movement relative to the first fixed rail, the first sliding rail comprising:
• a utility side,
• a groove side comprising one or more grooves for receiving the plurality of bearings coupled to the first fixed rail, and
• a movable locking tab that mates with the locking apertures of the first fixed rail;
• and
• a first panel coupled to the first sliding rail.