Sleepers 237 st 4X9-12 t 446 st 3X11 / 12 t 23 , 584 st 3X9 t 3122 st 3X6 / 7 t 23 , 867 st 2 / 2X7 t 9756 st 2X5 / 11 t 1852 st 6 / 4X6 / 12 t 2000 st 5 /4X6