Self centering shaft wall system

摘要

A J-runner (10), used in the construction of shaft walls in buildings is provided with a lifting element (21) or ledge (22) or both to permit simple centering of studs (12) or shaft walls (13) or both. By providing a lifting element (21) in a lower J-runner, the studs or shaft walls (13) or both can rest upon the lifting element (21) to assist in vertically centering the studs or shaft walls or both when the shaft is fully constructed.