Do you need to upgrade your Gun Safe? here is some information that might help you find what you are looking for!
Storage level 1—a firearm is secured in accordance with the requirements of storage level 1 if—
(a) it is locked in a level 2 safe located in a building or outbuilding on the premises in which it is kept; and
(b) unless the safe weighs at least 150 kilograms when empty, the safe is bolted to a solid concrete, brick, metal or timber floor, wall or other permanent internal structure of the building or outbuilding in which it is located with at least 2 solid anchor bolts;
Click on image below for a clearer view.
Yorketown, SA 5576