A chair hanger system includes a front plate, a back plate opposing the front plate, a plate separator defining a gap between the front plate and the back plate, and a first and second hook attached to the back plate. The first hook defines a first opening geometry and the second hook defines a second opening geometry. A set of spacer blocks includes a first spacer block configured to insert within the first opening to reduce and change the first opening geometry, and a second spacer block configured to insert within the second opening to reduce and change the second opening geometry. A chair hanger device is also described.