Walthers Part # 243-30132, p. 283 Walthers 2021 HO Scale Reference. Interchangeable plastic wall sections make it possible to create buildings of any size, shape and height. Build a variety of styles - whatever you want or need. Packages include four identical wall sections with pilasters, plus doors, windows and clear window material where needed. All sections are the same width (2-3/4" 7cm) and color. Cornice packages include eight sections of Cornice with Cornice pilasters, Dock Riser Wall packages include eight Dock Riser Wall sections with dock pilasters. Powerhouse Window packages include two two-story windows and four walls.