Abstract: A wall frame assembly has an upper main beam, a lower main beam, a first lateral beam device, and a second lateral beam device. A first, a second, a third and a fourth angle plates are disposed on fourth inner corners among the upper main beam, the first lateral beam device, the second lateral beam device, and the lower main beam. A first angle blocking plate is disposed on the first angle plate. A second angle blocking plate is disposed on the second angle plate. A third angle blocking plate is disposed on the third angle plate. A fourth angle blocking plate is disposed on the fourth angle plate. A main support frame is disposed between the second angle blocking plate and the third angle blocking plate. A first auxiliary support frame is disposed between the main support frame and the first angle blocking plate. A second auxiliary support frame is disposed between the main support frame and the fourth angle blocking plate.