“But if you had it bolted to a 1/2” metal plate under 12” of concrete..”
Our gun safe is attached to the concrete slab with four 1/2 inch threaded rods set with chemical anchors. Good luck getting that thing out.
L
I kind of like the metal plate under the slab with studs sticking up, but I am familiar with concrete anchors and agree pulling something out is no trivial task!