I promised some pictures yesterday, so here they are.
The first is the end of a cabinet run in the kitchen and the second shows the door open where the bottom of the cabinet has space to hide ammo and weapsons or anything else. The door is held shut with cabinet door magnets and it's pretty stiff. Something thin like a knife or chisel blade is enought to pry it open. I put a sheet of 3/16ths plywood on the bottom so that it could slide out with the contents. Pardon the debris on the floor. The maid comes today.
The next one is a bathroom vanity. I merely screwed large hooks on the inside above the cabinet door and hang the gun from from the trigger guard. It hangs between the cabinet front and the sink. There is room for two of three handguns in there. The 1911 in this instance is a 1944 Remington Rand.
Next is a nightstand. In the second shot, the door is open and you're looking at the inner-left wall on the top shelf. Note the small finger-sized hole at the top of the left panel. Insert finger and pull to remove panel and you see what's on the other side. Once again, these panels are help in place by strong cabinet magnets. There is a compartment like this one on the right side too, and the nightstand on my wife's side of the bed has the same setup. That's Springfield Armory 1911 with McCormack 10-round mags, BTW.
The one below is (was) a sofa tabe (legs shortened) that I added a false bottom to it. I used cabinet grade plywood to make it look original. I hinged one end and used two slide bolts (one on each side) to hold up the other end in the closed position. I then cut a trapezoidal piece of the same plywood to cover the end and it is held in place with (once again) kitchen magnets. A sharp rap on one end of trapezoidal piece dislodges the cover and you can slide the bolts to lower the bottom revealing the last picture. Great place for rifles. It's holding two Marlins and a pump shotgun.
I built this bookcase some years back and the bottom contains compartment that has no firearms but does have other valuables. You just pull the bookcase away from the wall and and unscrew a board from the back and it reveals the contents.
This last one shows the end of a long storage closet. I didn't remove all the junk off the shelves for sake of time but in those shelves are about four (I think) rifles. when I built the shelves, I made a false wall that runs from the bottom of the top shelf down to the top of the bottom shelf. There are three shelves but you can only see the top two in the picture. All you have to do (after removing the junk) is to pull the top shelf toward you about four inches and then peer down the back of the top shelf into the gap. You will see rifles aimes at your head, which is an excellent time to have them unloaded. When I built the shelves, I added a piece of 1/2 inch plywood parallel to the rear wall, built the shelves in front, sanded it down and painted it all the same color as the rest of the closet. I had several people come in an inspect before I all the debris was put in place and nobody coulf tell there was a compartment there. With all the stuff in place, it's even harder.
Hope this helps give some ideas and if anyone has more ideas, I'd like to hear them.
Ed
What they did not get was my guns which were locked up in my safe. They tried but failed. I thank God I got a gun safe five years prior.
