Abstract: The present invention discloses a novel work vehicle cab compartment, such as a tractor cab, that is configured to provide convenient and ample access to under-cab components. The cab compartment is fixedly mounted onto a work vehicle frame and includes a cab footing structure secured to the work vehicle frame and a pivoting floor structure. The pivoting floor structure includes a raised central portion and flange portions, which partially define the floor of the cab compartment. One of the flanged portions mechanically fastened to the cab footing structure while another flange portion is hingedly coupled to a mounting structure that is secured to the cab footing structure. A pivoting seat assembly, including an operators seat, is attached atop a seat suspension that is mounted to the pivoting floor structure.