Rockler Woodworking and Hardware has expanded its selection of rolling barn door hardware that glides open to the side instead of swinging open. I-Semble complete rolling door hardware kits include two roller assemblies with sealed ball bearings, mounting brackets, track, door stops, floor guide, discs to keep the rollers from jumping the tracks, and installation hardware. With an optional soft-close adapter mechanism available for flat-track kits, most of the I-Semble kits feature flat tracks made from 1/4in. thick steel that incorporate interlocking dovetails in the middle. Rockler is also offering several matching door handles and plans to sell additional sections of flat track.