I recently bought a small house with a nice size garage. There really isn’t a spot inside the house for a safe so I’m debating putting a safe in the garage. I know it’s not optimum but is it a terrible idea?

I keep mine in garage, Have 2 rechargeable dehumid packs and put plywood under safe. Never had an issue. Last house same, no issue.Keep all long guns in silicone gun socks. Handguns same, sock and some in case too.

A Golden Rod dehumidifier is not expensive and helps out a lot. Keeps the interior just that slight bit warmer.

When I lived there, I had my safe in the garage. Had a golden rod & a rechargeable dehumidifier.

Never had any issues. I had mine bolted to the floor & wall. 
Realize if someone breaks in, it will be easier for them to get the safe out of the garage then if it was in your house.

Fully intend to bolt it in if it goes in the garage. I will also build A wall so the safe can’t be seen when the door is open. Thanks for the input guys

4 minutes ago, njpilot said:

When I lived there, I had my safe in the garage. Had a golden rod & a rechargeable dehumidifier.

Never had any issues. I had mine bolted to the floor & wall. 
Realize if someone breaks in, it will be easier for them to get the safe out of the garage then if it was in your house.

Exactly. That's why some kind of alarm system is also recommended. Given enough time any safe can be defeated or removed.

I had one in a damp basement for years. The Goldenrod keeps the humidity out.

Just get it up off the floor a bit. Most people use wood, but I'd think about using PVC. You can buy a Trex plank at Home Depot for a few bucks.

I went to Tractor Supply and got a section of 1/4" rubber mat designed for horse stalls. You can buy it by the foot. That's sandwiched between the bottom of the safe and the basement floor to prevent moisture migration. You can cut it to fit the safe footprint, and it complicates trying to get a prybar wedged in underneath. It worked well and didn't complicate bolting the safe to the concrete floor.

1 hour ago, 45Doll said:

I went to Tractor Supply and got a section of 1/4" rubber mat designed for horse stalls. You can buy it by the foot. That's sandwiched between the bottom of the safe and the basement floor to prevent moisture migration. You can cut it to fit the safe footprint, and it complicates trying to get a prybar wedged in underneath. It worked well and didn't complicate bolting the safe to the concrete floor.

Moo mats FTW!

A lot of tips on how to store a gun safe in the garage, I suggest looking at this article Can You Keep a Gun Safe in the Garage? But you must understand that it is necessary to deal with moisture if the garage is underground and the air in it is humid.

My garage in the last house was terrible in terms of humidity. I had to lubricate the safe in and out with an anti-rust solution. And many more tricks

 

I've had my safe in the garage for over 15 years and never had any issues. It sits on a piece of 1/2 inch plywood and every few months I change out the disposable dehumidifier I get at Dollar Tree.

I'll go a little against the previous posts and say, it depends. Some garages will have extreme temperature and humidity fluctuation that a home's interior doesn't. Now if you only plan on storing polymer/parkerized/stainless firearms, then no big deal. But if some of your guns have fine wood stocks and gloss bluing, they may do better in a more temperature controlled environment.