A removable flooring system includes modular floorboard panels having one or more latches, placed on longitudinal support structures having mating locking disks, so that the floorboard panels can be readily secured to the longitudinal support structure. In one embodiment, the floorboard panel comprises a top skin, a frame, and a bottom skin. Two latches may be located in the panel, where each latches comprise a latch handle, a moveable cam, and a board disk. The locking disk is affixed to the longitudinal support structure, and is designed to receive the board disk. The latch can be rotated so the cam readily engages and disengages with the locking disk. To use the system, a plurality of longitudinal support structures are placed in a plane, and a plurality of floorboard panels are placed over the longitudinal support structure, and affixed by rotating the cam in the latch.