Nailable hollow structural member

An interconnectable nailable hollow structural member for constructing wall sections, comprising an elongated hollow member of sheet metal formed to define opposed clamping walls and end walls spaced apart between said clamping walls, said clamping walls extending in substantially parallel planes, an elongated boss formed in each clamping walls and extending longitudinally of said tubular member in alignment with one another, one of said clamping walls and one of said end walls having an opposed connectable portion, spacer means for maintaining one of said clamping walls in juxtaposition with a clamping wall of another hollow member and spaced apart by said spacer means to form an elongated opening between said hollow members constituting a nail receiving slot, said elongated boss deforming a nail inserted in said slot, one of said clamping walls having a corner edge in close proximity to said opposed connectable portions, and means for interconnecting two or more of said hollow members with said clamping walls juxtaposed so that said two or more hollow members form a wall section having a substantially uniform wall on one side and a slotted wall on the opposed side.