The dimensions of gold ingot bars held in Federal Reserve Banks is:
7 x 3.625 x 1.75 inches
weight is 30.94 lbs each.
We sometimes would get shipments of gold moving through my office, maybe the size of a shoebox. It presented the opportunity to tell some unsuspecting employee to go pick up the package and bring it over to us. We were waiting for the astonished expression when they could barely move it, but then we were easily amused.