Southern Pacific double-door, general service box car, class B-70-49, series 224000-224999, built in 1969 by FMC (Gunderson Bros.), Portland, Oregon. Outside dimensions are 55'-4" long, 10'-8" wide, and 15'-5" high. Inside dimensions are 50'-7" long, 9'-4" wide, and 11'-0" high. Dimensions of double doors are 16'-4" wide and 10'-4" high. As of October, 1976, 948 cars were in service. Cars are assigned to the Eugene, Oregon, lumber pool. One door on each side is painted yellow to indicate the car is in lumber service. Each door is equipped with a steel channel along the bottom to facilitate opening and closing of doors by fork lift truck. Cars come with heavy duty floors, improved dreadnaught ends (4/4 corrugations), and diagonal panel roofs. Mr. Ryczkowski's drawing shows 14 seam caps, usually called roof ribs) as did the prototype. Side panels are welded except for the two end panels which are riveted to the ends. The ends of the car are not provided with poling pockets.