Most common size table Product : H - Beam 100 x 100 x 6 x 8 800 x 300 x 12 x 20 JIS, ASTM, EN I - Beam 100 x 55 x 4.5 x 7.2 700 x 300 x 13 x 24 JIS, ASTM, EN U channel 50 x 32 x 4.4 380 x 100 x 10.5 JIS, ASTM, EN C channel 80 x 40 400 x 150 JIS, ASTM, EN Z channel 120 x 52 x 58 400x 150 x 150 JIS, ASTM, EN