ECN Forum Forums General Topics of the Trade General Discussion Area Engineered Wood Joist

Has anyone wired a residential basement with the new engineered wood joists? They look like an I-Beam made out of wood, with a 2x3 on the top and bottom, and CDX plywood 1/2 X 12 in the center. I was wondering where you attach the boxes, and what do you use to staple the Romex to them.