Figure 18 The enclosed staircase in the Mabee House, Rotterdam Junction,
New York, 1710-1750. (Courtesy, Mabee House Historic Site, Schenectady
County Historical Society; photo, Gavin Ashworth.) This staircase is in
the early-eighteenth-century addition to the house. Although enclosed,
the stair has framed stringers, handrails, and treads and risers. The
second storey of the house was not finished for occupancy until the late
nineteenth century. Before that time it was used for storing tools
and produce.