Abstract: A method and system is provided for blocking the access opening to a loading ramp storage space in a truck body to prevent theft of the ramp. The system employs a pair of telescoped blocking members having forks on the distal ends thereof. The forks are adapted to engage opposed frame members at the access opening. One of the blocking members has a series of holes therethrough to receive the hasp of a lock to limit telescopic movement of the blocking members. With the forks in place on the opposed frame members and the lock hasp in place the blocking members extend across the access opening and prevent removal of the ramp.