A stud form and system for forming a preformed concrete wall panel (1) having a solid portion (36) and a plurality of vertical concrete studs (10) joined to the solid portion (36). The stud form includes a substantially U-shaped channel (12) having a face portion that defines an elongated plane and leg portions extending along side of and away from the elongated plane to define a predetermined channel depth. The stud form further includes means for integrally connecting the stud form to the solid portion (36) of the wall panel (1) with the channel opened toward the solid portion (36).
