Columbia Place is a regular stop on architecturally-oriented walking tours of Brooklyn Heights. It’s a quiet street, protected from the noise of the Brooklyn Queens Expressway by Alfred T. White’s apartment building. We received a request for interior units in a single-family home that was built in 2003. Among the units were a sliding window with fixed sidelites serving as a dining room partition and a single interior door. Units were made from Steelline profiles coated with VeroMetal. The customer opted not to install any guide parts on the tabletop, so a system of synchronous window opening was provided.