In one or more embodiments, a chair is provided having a frame, a seat operably connected to the frame, a backrest operably connected to the frame, and a retractable wheel assembly positioned within the frame, among other components. The retractable wheel assembly is configured to facilitate retraction of a wheel into the frame when a downward force is applied to the chair. In one or more arrangements, the retractable wheel assembly is configured to facilitate extension of a wheel below the frame in absence of a downward force.