美制和國標鋼板厚度換算對照表
28GA=0.015inches=0.38mm
26GA=0.018inches=0.46mm
24GA=0.024inches=0.61mm
22GA=0.030inches=0.76mm
20GA=0.036inches=1.00mm
18GA=0.048inches=1.20mm
16GA=0.060inches=1.60mm
14GA=0.075inches=2.00mm
12GA=0.105inches=2.70mm