Abstract: A wall panel jig apparatus (10) for fabricating a variety of conventional and/or extended wall panel segments including corner panel segments (110) window panel segments (120) standard panel segments (130) entry door panel segments (140) and end panel segments (150) wherein the jig apparatus (10) comprises a rectangular framework including top (20) bottom (30) right side (40) and left side (50) frame members for joining conventional top plates, shoe plates and studs into conventional wall panel segments by nailing.