The interior I mean.

I bought the safe from Costco and it came last week. I'm happy with it except for one problem. The center support and the part that hold the barrels dont really have anything to keep them in place. The center fits into the bottom with some tabs and into the shelf piece with the cutouts and then there are clips on the walls that hold the shelves but nothing holding it solid.

I guess my question is what is on the inside of the safe behind the carpet stuff in the walls. Can I get some little L brackets and 1/2 or 3/4 screws and screw into the walls. This wont be to add load bearing support, just so things dont move around.

Also, anyone know where I can find some pictures/ideas of how to make better use of the safe. I dont have a ton of guns but I have a bunch of other stuff gun related and I would prefer to have it all in one place.

is it a for real safe that's fire rated?
If so I probably wouldn't screw anything into it, as you might damage the fire proofing stuff.

What about some sort of construction adhesive?

Yea, its fire rated, the info is in this post

http://www.pirate4x4.com/forum/showthread.php?t=797408&highlight=safe

I though about some sort of adhesive but that seems a little hokey to me and I would like to be able to change the configuration in the future if my needs change.

Add some high strength concrete. At least thats what I did

.....................ooh wait you said cosco safe :laughing:

It's most likely drywall. That's it. The vast majority of cheaper safes use the fire rated version of drywall. My liberty has 2 to 3 plies of it (depending on the location) glued to the steel.

Higher end safes use ceramic wool, which is a lot like fiberglass, or Amsec uses some other poured stuff. I've been toying doing a safe build up by adding more steel and more insulation. The ceramic wool is surprisingly cheap.

What he said. My sporting-goods-special has the same 2-3 layers of drywall.

I would seriously use small L-brackets, wall-anchors, and screws to anchor down the center wall.