| thickness (mm) | theoretical weight (Kg / m 2) | thickness (mm) | theoretical weight (Kg / m 2) | thickness (mm) | theoretical weight (Kg / m 2) | thickness (mm) | theoretical weight (Kg / m 2) | 0.20 | 1.570 | 1.50 | 11.78 | 10.00 | 78.50 | 29.00 | 227.70 | 0.25 | 1.963 | 1.60 | 12.56 | 11.00 | 86.35 | 30.00 | 235.50 | 0.27 | 2.120 | 1.80 | 14.13 | 12.00 | 94.20 | 32.00 | 251.20 | 0.30 | 2.355 | 2.00 | 15.70 | 13.00 | 102.10 | 34.00 | 266.90 | 0.35 | 2.748 | 2.20 | 17.27 | 14.00 | 109.90 | 36.00 | 282.60 | 0.40 | 3.140 | 2.50 | 19.63 | 15.00 | 117.80 | 38.00 | 298.30 | 0.45 | 3.533 | 2.80 | 21.98 | 16.00 | 125.60 | 40.00 | 314.00 | 0.50 | 3.925 | 3.00 | 23.55 | 17.00 | 133.50 | 42.00 | 329.70 | 0.55 | 4.318 | 3.20 | 25.12 | 18.00 | 141.30 | 44.00 | 345.40 | 0.60 | 4.710 | 3.50 | 27.48 | 19.00 | 149.20 | 46.00 | 361.10 | 0.70 | 5.495 | 3.80 | 29.83 | 20.00 | 157.00 | 48.00 | 376.80 | 0.75 | 5.888 | 4.00 | 31.40 | 21.00 | 164.90 | 50.00 | 392.50 | 0.80 | 6.280 | 4.50 | 35.33 | 22.00 | 172.70 | 52.00 | 408.20 | 0.90 | 7.065 | 5.00 | 39.25 | 23.00 | 180.60 | 54.00 | 423.90 | 1.00 | 7.850 | 5.50 | 43.18 | 24.00 | 188.40 | 56.00 | 439.60 | 1.10 | 8.635 | 6.00 | 47.10 | 25.00 | 196.30 | 58.00 | 455.30 | 1.20 | 9.420 | 7.00 | 54.95 | 26.00 | 204.10 | 60.00 | 471.00 | 1.25 | 9.813 | 8.00 | 62.80 | 27.00 | 212.00 | 1.40 | 10.990 | 9.00 | 70.65 | 28.00 | 219.80 |