Abstract: A construction member includes an upper and lower chord joined together by a plurality of spacer plates positioned along the length of the chords. Struts are disposed to extend diagonally between the upper and lower chords and between each pair of adjacent spacer plates. The spacer plates include teeth for embedding into the chords and the struts to form a rigid and sturdy construction member.

Abstract: Studs, joists, trusses and similar construction members having a pair of generally parallel chords and blocks disposed between the chords are manufactured by placing a plurality of blocks on a moving surface, with the blocks being spaced apart generally in a line along the direction of movement. A pair of chords are placed on each side of the line of blocks and are moved along with the blocks. The chords and blocks are moved past apparatus which drives fastening elements through the chords and into the blocks to secure the chords and blocks together in a rigid construction. Spacer lock plates may also be used to separate and lock the two chords in position, each spacer lock plate including opposed cuts on opposite edges thereof for receiving the chords, a stem portion between the cuts, and toothed flanges at each side of the stem portion.