Beams Product (mm) km/metre 150 UB 14   18 180 UB 16.1   18.1   22.2 200 UB 18.2   22.2   25.4   29.8 250 UB 25.7   31.4   37.3 310 UB 32   40.4   46.2 360 UB 44.7   50.7   56.7 410 UB 53.7   59.7 460 UB 67.1   … Continue reading BEAMS