GI Sheet Gauge to mm Conversion table
Quick answer: GI (galvanised) sheet gauge to mm: 14 ga = 1.99 mm, 16 ga = 1.61 mm, 18 ga = 1.31 mm, 20 ga = 1.01 mm, 22 ga = 0.85 mm, 24 ga = 0.70 mm, 26 ga = 0.55 mm. A 1,220 × 2,440 mm sheet weighs about 23.4 kg per mm, so a 20 ga sheet!-->!-->…