This building can be a diesel house, a locomotive works, a car building facility, or a factory.  The four door openings are 4 ½” high x 3” wide. The track centers are 5 ½”.  There is a 17” long work platform between the two tracks with steps at each end.  Construction is from Northeastern Scale Lumber. cardstock, cement block paper, and transparency windows.  Footprint is 10” x 21½”.  Height is 8 5/8”.