Moisture just isn't going to be a problem with it. Mine isn't even in a heated area, and is on a concrete floor. I built a plywood cabinet around and over it just to disguise it from strangers who may drop by, but the wheels are directly on the concrete floor. I have seen water dripping off the safe itself from the humidity during the winter and opened it and the interior would always be warm and dry.

SRH

May God bless America and those who defend her.