Abstract: An apparatus for the high-volume manufacture of assembled wall frame structures for use in the residential and commercial building industry is arranged to receive and support a pair of laterally spaced apart top and bottom plate members and move them longitudinally in indexed, stepwise increments through a stud-inserting and fastening station in which wall stud members are automatically positioned to engage and extend perpendicularly between the plate members at predetermined intervals therealong, whereupon the opposite ends of a stud member are secured to the opposite plate members by a fastening device, whereby complete wall frame assemblies may be quickly and efficiently made on a continuous basis according to desired specification as ordered and thence delivered to a construction site for erection.