Free: Contests & Raffles.
Depending on the jurisdiction, and if I remember correctly, I'm pretty sure most residential floor joists are sized to provide at least 40 pounds per square foot (psf) of live load (stuff that can move) or 10 psf for dead load (stationary stuff). A 500 pound safe would need to cover 50 sq ft of floor, so I say stiffen it with a pad and some posts underneath.
I'm assuming you are going to put it next to the wall. I've never seen a gun safe in the middle of a room. So, you have nothing to worry about. The strength of the floor joist get higher the closer you get to an exterior wall, unless you have post and beam, then you probably have car-decking as well, and that is even better.I have a 12 gun safe, that I believe, weighs around 800 lbs. empty. I put it in the corner, and there is no worries on my part.
The only reason I don't have a gun safe is getting it into the basement. That is where I want it. 500lbs will be a little more than I can handle on my own down a flight of stairs. You guys have any tricks for moving a safe?
Purchase two concrete pier blocks with brackets that adjust to height simply by turning a bolt with a crescent wrench. Buy enough 4inch by 4inch pressure treated fence post material needed to reach from the pier blocks to the flooring above. Tack a six foot long piece of the 4x4 post material across a few floor joist under your safe, this is your "helper beam". Slide your pier blocks under the helper beam, and cut two posts to reach from pier block to beam. Cut and install, then start turning your two bolts to tighen the whole thing in place. Cheap, easy, effective.
QuotePurchase two concrete pier blocks with brackets that adjust to height simply by turning a bolt with a crescent wrench. Buy enough 4inch by 4inch pressure treated fence post material needed to reach from the pier blocks to the flooring above. Tack a six foot long piece of the 4x4 post material across a few floor joist under your safe, this is your "helper beam". Slide your pier blocks under the helper beam, and cut two posts to reach from pier block to beam. Cut and install, then start turning your two bolts to tighen the whole thing in place. Cheap, easy, effective. Do not put your pier blocks on the dirt. They will just be forced into the ground. You need to either put a concrete pad or put 4X4's on the ground. The 4X4's will eventually rot but this is better than just putting the pier blocks on the dirt.
Quote from: purplecowboy on Yesterday at 09:54:01 AM Quote Purchase two concrete pier blocks with brackets that adjust to height simply by turning a bolt with a crescent wrench. Buy enough 4inch by 4inch pressure treated fence post material needed to reach from the pier blocks to the flooring above. Tack a six foot long piece of the 4x4 post material across a few floor joist under your safe, this is your "helper beam". Slide your pier blocks under the helper beam, and cut two posts to reach from pier block to beam. Cut and install, then start turning your two bolts to tighen the whole thing in place. Cheap, easy, effective. Quote Do not put your pier blocks on the dirt. They will just be forced into the ground. You need to either put a concrete pad or put 4X4's on the ground. The 4X4's will eventually rot but this is better than just putting the pier blocks on the dirt.QuoteUhhhh, the pier blocks on dirt are more than sufficient to help the extra load on the floor under a safe. Most post and beam homes have this under their beam runs, nothing more. This is not a load bearing portion of the home and will suffice.Note; I am talking about a 12" by 12" concrete pierblock with bracket, the same pierblocks most exterior decks sit on... Very substantial.
Do not put your pier blocks on the dirt. They will just be forced into the ground. You need to either put a concrete pad or put 4X4's on the ground. The 4X4's will eventually rot but this is better than just putting the pier blocks on the dirt.
Uhhhh, the pier blocks on dirt are more than sufficient to help the extra load on the floor under a safe. Most post and beam homes have this under their beam runs, nothing more. This is not a load bearing portion of the home and will suffice.Note; I am talking about a 12" by 12" concrete pierblock with bracket, the same pierblocks most exterior decks sit on... Very substantial.