Home My iTrader Join the NRA Donate to CGSSA Sponsors CGN Google Search
CA Semiauto Ban(AW)ID Flowchart CA Handgun Ban ID Flowchart CA Shotgun Ban ID Flowchart
Go Back > OUTDOORS, HUNTING AND SURVIVAL > Survival and Preparations
Register FAQ Members List Calendar Mark Forums Read

Survival and Preparations Long and short term survival and 'prepping'.

Thread Tools Display Modes
Old 01-01-2013, 7:12 PM
nobama's Avatar
nobama nobama is offline
Join Date: Apr 2009
Posts: 492
iTrader: 19 / 100%
Default How to bolt safe to floor?

Sorry if this is in the wrong section. I have been trying to figure out how I can bolt my safe to the floor properly. I am totally new to this and need help, any advice is much appreciated. These are my main questions:

What anchors should I use and where can I buy them?
What size drill bit should I use?
Can I do this into a hardwood floor?
Reply With Quote
Old 01-01-2013, 7:18 PM
d_c_mar's Avatar
d_c_mar d_c_mar is offline
CGN/CGSSA Contributor
CGN Contributor
Join Date: Sep 2010
Location: La Puente, CA
Posts: 109
iTrader: 2 / 100%

What's under the hardwood? Is it a concrete slab or a crawl space? Hardwood is but a relatively thin veneer.
"Everybody's got a plan until they get hit" - Mike Tyson
Reply With Quote
Old 01-01-2013, 7:29 PM
nobama's Avatar
nobama nobama is offline
Join Date: Apr 2009
Posts: 492
iTrader: 19 / 100%

I think there is a crawl space underneath.
Reply With Quote
Old 01-01-2013, 7:36 PM
Henry Shooter Henry Shooter is offline
Senior Member
Join Date: Aug 2008
Location: Ramona, Ca.
Posts: 830
iTrader: 40 / 100%

If you have a crawl space it will be difficult to properly anchor it. One suggestion is to Bolt a larger piece of 3/8 plate to the bottom of the safe. Make the plate big enough that it will not fit though any doors or entrances? 12" all the way around the safe is good . It will also help distribute the safes weight over a larger area preventing any damage to the floor joist
Just my .02.
Reply With Quote
Old 01-01-2013, 7:40 PM
Laythor's Avatar
Laythor Laythor is offline
The other white meat.
CGN Contributor
Join Date: Oct 2012
Location: San Jose
Posts: 992
iTrader: 5 / 100%

not to say this is asked a lot but.....
Reply With Quote
Old 01-01-2013, 9:50 PM
problemchild problemchild is offline
Join Date: Oct 2005
Location: 33.753276,-118.19139
Posts: 6,968
iTrader: 82 / 100%

Put a micro switch under the safe that triggers a instant room filling pepper spray. Safe gets moved and everyone gets dusted.
Reply With Quote
Old 01-01-2013, 10:37 PM
badreligion badreligion is offline
Senior Member
Join Date: May 2007
Location: Simi Valley
Posts: 541
iTrader: 4 / 100%

Depending on how much work you wanted to do anything can be anchored in place.

You can anchor the safe from the bottom if you can access the crawl space. It is a lot more work but it will be a lot more secure. You need to lay your safe on its side or back and make a template of the hole pattern. Then lay out your template on the floor and mark where the anchor holes are at. Take a small drill but 1/8" and drill a small pilot hole all the way through the floor. Stick a clothes hanger with a tape flag through the hole and crawl under the house and find the flags. Ideally they will be about 2" from your floor joists with at least 1 joist directly under your safe. If your satisfied with the hole locations then buck upstairs. Verify the hole size in the bottom of your safe for anchors. I imagine they are 1/2" holes. At this point you need to determine how thick your floor is and go buy bolts that are at least 2" longer than your floor is thick. You will also need 2 fender washers, 1 lock washers and 1 plate washer (4" square washer) and 1 nut. I suggest hot galvanized or stainless parts for all of this. Drill out the pilot holes to the proper size and put your safe in place. Insert the bolts with one of the fender washers from the top. Take everything else and back under the house. Put the plate washer on the bolt, followed by the fender washer, the lock washer and the nut. You remebered to invite a friend to help right. They hold the bolt on top from spinning and you tighten everything from the bottom. Once everything is tight, your safe is now anchored in place.

Can it be made stronger? Yes but then your gonna have a lot more work.
Some people will do skanky things for $25, and not all those people are crack whores.

Bill Wiese
San Jose, CA

Reply With Quote
Old 01-03-2013, 11:48 PM
Jel's Avatar
Jel Jel is offline
Senior Member
Join Date: Mar 2009
Location: SF Bay Area
Posts: 1,329
iTrader: 27 / 100%

No experience on anchoring to a wooden floor w/ crawlspace underneath, since I bolted mine to a concrete slab in my den, but since you are bolting to a wooden floor, I would suggest bolting it to a wall joist/s as well.
Reply With Quote
Old 01-04-2013, 1:38 AM
zatoh's Avatar
zatoh zatoh is offline
CGN/CGSSA Contributor
CGN Contributor
Join Date: Oct 2005
Location: Home of the Fee and the Slave
Posts: 764
iTrader: 15 / 100%

I just did this. My concern was more for earthquakes than theft. I don't know if it was the best way. Here's what I did:

I measured and mapped out where my safes were and the approximate location of the mounting holes. Make sure your safe(s) is (are) as flush with the wall as possible. You will need to clear out your safe as flipping the safe as suggested earlier on its side is more work for me. You will most likely have to partially remove the interior of the safe as well.

Then I crawled under the house to see if anything was in the way. One safe was straddling the old foundation so I had no concerns about strength. The other was in a corner so I wasn't too worried about that either.

Then using a long bit I drilled 3/8" holes and went back under to take my measurements for the 4x4s that I used to reinforce the mounting locations. If you have carpet you will need to stop and clear the bit of carpet material when it gets wrapped around it.

Cut your 4x4s (or whatever you decide) to length. You may have to mount some of the 4x4s at an angle so that you have clearance to fit a wrench to screw them in so make allowances in your measurements to do this if necessary. I learned this the hard way.

Go back under the house and tack-nail your 4x4s in place such that the holes you drilled through your floor are centered in the 4x4s. Pre-drill mounting holes though the 4x4s and 2x6s for what ever size lag bolts you are using so that you can easily tighten them. Make sure you center them as best as you can. I used 1/2" galvanized with one screw and washer at each end of my 4x4 blocks. Mount the 4x4s flush with the sub floor or as flush as you can get it.

Now screw them suckers in. An impact drill makes it a lot less work so use one if you got one.

Back in the house get your 3/8" extra long bit and drill through the holes that you already drilled through the newly installed 4x4s you mounted. Install the lag bolts along with washers allowing for at least 2" of sub floor and carpet (if you have any) plus at least 2" of bite into your 4x4s. I went at least 3" into my 4x4s.

Now put your interior of your safe back along with its contents!

Last edited by zatoh; 01-04-2013 at 1:39 AM.. Reason: typo
Reply With Quote
Old 01-04-2013, 3:46 AM
bigb0886 bigb0886 is offline
Join Date: Jun 2011
Location: CA
Posts: 274
iTrader: 1 / 100%

Linkpimp did a really awesome write up on bolting down a safe:
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -8. The time now is 1:38 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Proudly hosted by GeoVario the Premier 2A host., the 'Calguns' name and all associated variants and logos are ® Trademark and © Copyright 2002-2016, an Incorporated Company All Rights Reserved.