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  1. #1
    Join Date
    Oct 2012
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    Shelby NC
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    129

    Default Anyone ever see these things

    Anyone see these things before. They are made of PLASTIC. Would love to know what their load bearing capacity is. They are holding up a two story 140 year old farmhouse when the stone and cedar log pilasters started failing.

    Inspection Referral SOC

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: Anyone ever see these things

    I searched for ones like those but could not find them.

    I used to have some 90 ton ball screw jacks, can't find any with that lifting capacity on an internet search now ... at the time I would have sworn that the 90 ton rating was their weight ... man those things were h-e-a-v-y to move around, yet each would lift a section of a two story house without struggling - much - trying to turn the screw with the bar.

    Are you sure they were plastic through and through and not plastic coated steel?

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3
    Join Date
    Oct 2012
    Location
    Shelby NC
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    129

    Default Re: Anyone ever see these things

    Quote Originally Posted by Jerry Peck View Post
    I searched for ones like those but could not find them.

    I used to have some 90 ton ball screw jacks, can't find any with that lifting capacity on an internet search now ... at the time I would have sworn that the 90 ton rating was their weight ... man those things were h-e-a-v-y to move around, yet each would lift a section of a two story house without struggling - much - trying to turn the screw with the bar.

    Are you sure they were plastic through and through and not plastic coated steel?
    I scratched the surface with my probe and knocked on them. They seemed to be made of a polymer rather than coated steel. They look to me to be temporary anyway and not something permanent you want holding up the whole front of the house with two floors and a roof and no foundation under them.


  4. #4
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,546

    Default Re: Anyone ever see these things

    Plastic Jack Stand | Kampa UK

    Capacity 750 kilograms. A kilo is 2.2 lbs, do the math.

    They are designed to keep the motorhome from rocking, not to keep the two-storey house from collapsing.


    • Ideal to stop motor homes and caravans rocking
    • Strong but lightweight
    • Set of 4
    • Max payload per stand: 750 kg
    • Wide base for stability
    • Also suitable for other wheeled units
    • Adjustable height, from to 25cm to 42.5cm
    • Can be stacked for easy storage and transport
    • Dimensions: Base 17.5 x 17.5cm, Minimum Height 25cm

    DO NOT USE AS THE SOLE MEANS OF SUPPORTING A VEHICLE

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

  5. #5
    Join Date
    Oct 2012
    Location
    Shelby NC
    Posts
    129

    Default Re: Anyone ever see these things

    OMG I think I found them. I think they are rv jacks from walmart.


  6. #6
    Join Date
    Mar 2007
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    Ormond Beach, Florida
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    26,248

    Default Re: Anyone ever see these things

    Quote Originally Posted by ren ramsey View Post
    I scratched the surface with my probe and knocked on them. They seemed to be made of a polymer rather than coated steel. They look to me to be temporary anyway and not something permanent you want holding up the whole front of the house with two floors and a roof and no foundation under them.
    I'm not even sure I would want plastic (polymer) bases on even a temporary floor jack.

    Like you, I wonder what the rating is ... and what the maximum load duration limit is. With plastic, the maximum load duration may be as important as the maximum load is - and the rusty screw indicates they have been there a while, thus the load duration has been quite long to, but is it lightly loaded or heavily loaded - with plastic, it can make a big difference in its ability to withstand long term load duration.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7
    Join Date
    Mar 2007
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    Ormond Beach, Florida
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    26,248

    Default Re: Anyone ever see these things

    Quote Originally Posted by ren ramsey View Post
    OMG I think I found them. I think they are rv jacks from walmart.
    Those are aluminum, not plastic.

    Yes, those plastic ones could be RV stabilizer jacks.

    If you are an RVer ... you've probably seen the signs " If it's a rockin' don't come a knockin' ".

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  8. #8
    Join Date
    Nov 2011
    Location
    Oregon, USA
    Posts
    333

    Default Re: Anyone ever see these things

    And Gomer is probably a hero in Bertha's eyes, "cuz he fixed the whole house from collapsin' by putting in those cute little doozy-flop things he found at a garage sale."

    I'll never forget doing a favor for my then-girlfriend, looking into why an exterior porch light her uncle had recently installed frequently flickered when used. I had reasons not to trust her proclamation that "Unc was the chief maintenance man at a local hospital" when I opened up the junction box to find he had used cellophane tape instead of wire nuts to wrap the loosely-twisted wiring connections in the box.


  9. #9
    Join Date
    Oct 2012
    Location
    Shelby NC
    Posts
    129

    Default Re: Anyone ever see these things

    Quote Originally Posted by Jerry Peck View Post
    Those are aluminum, not plastic.

    Yes, those plastic ones could be RV stabilizer jacks.

    If you are an RVer ... you've probably seen the signs " If it's a rockin' don't come a knockin' ".
    Oh well I see your point, if they were aluminium they would be perfectly acceptable ( spoken in my best Monty Python acent)


  10. #10
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: Anyone ever see these things

    Quote Originally Posted by ren ramsey View Post
    Oh well I see your point, if they were aluminium they would be perfectly acceptable ( spoken in my best Monty Python acent)
    Oh, dear me, you must have been inspecting Fawlty Towers ... was Basil yelling at Manuel again?

    Oohhh, I knoooooow ... Oohhh, I knoooooow ... Oohhh, I knoooooow ...

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

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