Abstract: A ledger hanger for a geodesic dome having a seat and upstanding sidewalls connected to a spline which serves as a seat back and an adaptor connected to the spline. The adapter connects to a metal hub connector in the wall of the geodesic dome. A special pin securely attaches the ledger hanger to the structural metal hub in the wall. Ledger members are placed in the seats of the ledger hanger, bolted and form a secure partial or full ring around the inside perimeter of the dome at a second floor height.