16 gauge what? Wire... sheet metal... shotgun? No, seriously; look up a guage thickness chart for the material in question.
0625 inches or 1.59 mm
In Imperial standard (swg), 16 g is 0.064" (1.63mm) thick.
not that heavy depending on how long it is. the smaller numbe rthe gauge the heavier it is
bliggity bloggity.