Bolting down safe - Post Tensioned Slap issues

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  • TexasBound

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    Nov 15, 2011
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    South Central Texas is known for homes with post tensioned slabs for a foundation. Damage a tendon when bolting down your safe can cost you $5k - $10k in damage to your foundation and it's possibly not even fixable I have been told.

    So to make sure and avoid that, some companies will scan your concrete with GPR ground penetrating radar - costs about $500 depending on how much time involved.

    To scan it, you have to pull up the carpet and clean any glue off the floor, then put down new pad and re-stretch carpet.

    If you hire a carpet pro, he's going to see the safe.

    If you change carpet do you just cut around the safe and leave the old carpet under it? (this safe will be HEAVY, it's a good one) - will also have 1/4" rubber mat under safe to help protect against moisture.

    Anyone ever go through all of this, any suggestions?

    thanks
     

    Dawico

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    I'd just drill it. You can feel the bit hitting steel/ rebar so just stop and change the angle a bit. A masonry bit will have a hard time going through steel and you will know.

    But yes, when you replace the flooring just work around the safe
     

    Recoil45

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    My neighbor had an above ground shelter put in and the company used a cheap Zircon MT6 scanner to avoid the cables. Not sure if it was just for show or if this is an effective method.




    Sent from my iPhone using Tapatalk
     
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    oldag

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    If your safe is large, bolting really is not necessary. By the time you load it up, it will be too heavy to move. You could always put a thick steel plate in the bottom, or some lead shot.

    Small one, different story.
     

    Dawico

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    You could cut the carpet out of the way and glue it down to the concrete.

    If you do, use good construction adhesive and put the glue down in circles. Makes little suction cups and really amplifies the holding power.
     

    peeps

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    You could cut the carpet out of the way and glue it down to the concrete.

    If you do, use good construction adhesive and put the glue down in circles. Makes little suction cups and really amplifies the holding power.
    That's an interesting idea. How would someone go about moving it, if needed?
     

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