This is from “Buildings and Structures of American Railroads: A Reference Book for Railroad Managers, Superintendents, Master Mechanics, Engineers, Architects, and Students by Walter Gilman Berg, J. Wiley & Sons, 1893″
Chapter XVIII Platforms, Platform-Sheds, and Shelters Page 244
Shelter, Norfolk & Western Railroad. — The standard shelter of the Norfolk & Western Railroad, shown in Figs. 418 to 420, is 25ft. long by 10 ft. wide, enclosed on three sides and open toward the track. A bench runs around the interior. There are two windows in each gable-end of the house. The outside of the building is sheathed with weather-boarding, and roofed with shingles. The principal materials used are, 6-in. x 6-in. posts; 2-in. x 4-in. studs; 2-in. x 4-in. purlins; 2-in. x 4-in. gable frame; 2-in. x 6-in. struts; 2-in. x 2-in. seat-legs; 2-in. x 7-in. ridge-pole; 2-in. x 8-in. floor-beams; 4-in. x 6-in. sills; 1/4-in. x 6-in. casings; 1-1/4-in. wash-boards; 2-in. x 12-in. cresting; 2-in. curved brackets. The cost of the house erected complete is stated to be about $300.