How to Install and Bolt Down a Home Safe

Installation decides whether a safe performs as rated. An unanchored safe can be tipped over, pried from the back or simply carried away. Here is how to choose the right place and bolt a home safe down properly.

Choosing the location

• Concrete or masonry is essential. Anchor bolts need a concrete slab, a solid masonry wall or structural members — not drywall or a floating wooden floor.
• Avoid obvious places. The master bedroom closet and home office are searched first.
• Limit working space. A safe in a tight corner is harder to attack with pry bars and power tools.
• Think about fire. Ground floors and basements typically see lower fire temperatures; keep safes away from flood-prone spots.
• Keep it out of sight from windows, doors and guests.

Tools and materials

Estimated time: about 2 hours for a freestanding safe, excluding delivery.

Step-by-step: bolting a safe to a concrete floor

1. Choose the location

   Pick a hidden spot on a concrete slab or next to a load-bearing wall, out of sight from windows and the front door. Avoid wooden subfloors and drywall partitions.

2. Check the surface and utilities

   Make sure there are no electrical cables, heating or water pipes, or underfloor heating where you will drill. Use a wire and pipe detector.

3. Mark the holes

   Open the safe, remove the shelves and set it in place. Mark the floor through the factory anchor holes in the bottom (and in the back panel, if present).

4. Drill the holes

   Move the safe aside and drill holes to the diameter and depth specified in the anchor instructions. Vacuum all dust out of the holes.

5. Set the safe and anchors

   Put the safe back, level it, insert the anchor bolts through the holes in the body and tighten them to the torque recommended by the manufacturer.

6. Test the anchoring and door

   Try to move the safe — it must not shift. Check that the door opens and closes freely and the bolts extend without binding.

7. Change the code and conceal the safe

   Replace the factory code with your own, store the spare key away from the safe and, if needed, conceal the safe behind furniture.

In-wall and in-floor safes

In-wall safes should be set into a solid masonry or concrete wall, never a stud-and-drywall partition that can be cut open around them. In-floor safes are cast into concrete and are among the hardest home safes to find and remove; they are ideal for new builds and renovations. Both types usually have limited fire protection, so check the rating if fire is a concern.

When to hire a professional

Consider professional installers for safes above roughly 500 lb (about 225 kg), upper-floor installations, in-floor safes and any job involving stairs. Professionals can check the floor load and use the correct anchors and lifting equipment.

Common installation mistakes

• Using wood screws or short bolts instead of proper concrete anchors.
• Anchoring through carpet or a floating floor without reaching the slab.
• Placing the safe where there is room to swing a crowbar behind it.
• Telling delivery staff or visitors where the safe is.
• Keeping the factory code after installation.