M-D Oak 1-1/4 In. x 6 Ft. Aluminum w/Hardwood Finish Seam BinderDurable aluminum seam binder with the look of hardwood in oak or cherry finish. Covers and protects adjoining floors of equal height. 1 1 4' wide, in 3' and 6' lengths. Fasteners provided. Carpet metal installation on concrete surface suggestion: Drill a hole in the concrete, insert a 3 16' x 1 1 4' or 1 4' x 1 1 4' wood dowel. Use the screw nails provided with carpet metals, insert into dowel, expanding the dowel to lock in place.