Gun Safe on a non concrete floor

[MikeF]

Hey Everyone!  I just bought a 500 pound safe and I would like to keep it on a floor that is not concrete.  Does anyone have their safe on a non concrete floor?  Any problems with the structural integrity of your house?  Any issues with a sagging floor?   I don't have that many guns...yet, but I like to keep a nice little stockpile of ammo on hand.

Thanks!

Mike

P.S. I do have a few concrete floors in my house where I can put it but i would like to put it on the non concrete floor if possible. 

[Condition 1]

Put it on the concrete floor and bolt to it.

[TwistedKarma]

Our Salt water tank is 200 gals...   we put a post under it in the basement.    500 is light.. 

[Knotacare]

You can calculate floor loads with some fairly simple formulas.  Here's a site that explains it.
http://www.ehow.com/how_7485788_calculate-floor-load-capacity.html
I would tend to think 500+lbs is on the heavy side & you should look into more support .
forgot to add you can toe nail another beam to the existing one & increase load wt. Like 2 2X8's = 1 2X10 in load bearing

[SturmRugerSR9]

GUN SAFE SALE AT TRACTOR SUPPLY

http://tsc.tractorsupply.com/nav/cat2/tools_safes/0?cm_mmc=Email-_-Ecom-_-2013.01.16-_-safes&1102