Embodiments described herein relate to a tonneau cover for a bed of a truck. In one embodiment, the tonneau cover includes a set of panels that span a width of the bed between at least two mounting rails that are attached to sidewalls of the bed. The set of panels detachably connect to the mounting rails at attachment points within the mounting rails and are at least partially supported by the attachment points. Individual panels within the set of panels connect with adjacent ones of the set of panels through a detachable hinge within opposing sides. The individual panels connect to the mounting rails through retractable pins that extend from opposing ends.