Most people over estimate floor loads caused by large objects. Assuming the safe doesn't have wheels or blocks underneath it you are talking about 1036 (37x28) sq. inches of bearing area under the safe. As long as you don't put it in the middle of the room, (who would do that?) you will be fine. I have 3 tons of fireplace rock bearing on about 600 sq inches close to a beam wih no issues at all. 6 or 8 adults sitting at a kitchen table (typically in the center of a room-joist) causes more severe loads than that safe sitting closer to a wall. FYI, I worked for my dad's engineering firm for 7 years and designed my home so I know of what I speak. Good luck with it.