Staircase, Wood Railing, and Metal Tread On the first floor, a gentle ramp ensures accessibility to common areas; all passageways are at least three feet wide. “Our goal was to accommodate a wheelchair without having the house feel designed differently at all,” says principal Lisa Gray. The builder on the project, Scotty McClelland, has known and worked closely with the families for many years.  Photo 5 of 13 in It Took a Whole Family to Build This House