Abstract: An apparatus is provided for fabricating frame walls from end plates and studs. The apparatus includes a mechanism for the length-wise feeding of the end plates into registration position. An additional mechanism is provided for feeding a stud into registration position between the end plates. A nailer tacks the end plates and stud together in proper registration while maintaining clearance between the end plates for subsequent positioning of another stud in registration. After the positioning and tacking of an additional stud or studs, a staking and anchoring mechanism presses the plates and first stud fully together so as to rigidify the frame walls. As an additional feature of the present invention, the operations of the apparatus are controlled by a microprocessor controller. This controller is programmed to produce wall frames corresponding to each individual wall to be constructed throughout a building.