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  1. #11
    Join Date
    Jan 2010
    Location
    Northern Virginia
    Posts
    975

    Default Re: 2 x4 scaffolding

    If lumber is not structurally satisfactory why do we build permanent structures with it?
    We lived on this staging for 6 months back in 2000. The columns are 20 feet tall, and the foundation is 5' above grade. So to the tip of the pediment it was 32' tall. It was built better than some new houses. When taken down, i built the people some heavy storage shelves in their basement with the leftovers.






    Regular pipe staging would have been in the way of erecting the new wood columns.
    Casey
    Remove not the ancient landmark, which your fathers have set.

  2. #12
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,583

    Default Re: 2 x4 scaffolding

    Just curious, why are you not just using a simply pump jack system like I see so many of the siding guys using? I have seen new jacks which use 4X4 veticle posts available for as little as $100 each. I bet used ones could be found on e-bay.

  3. #13
    Join Date
    Jan 2008
    Posts
    1,096

    Default Re: 2 x4 scaffolding

    I don't know if they are still jobsite-legal, but pump jacks were made for this kind of work. When used correctly they are relatively safe, but I'd worry about them if left in place for more than a couple weeks. There are better ones which use metal poles- those I trust well. Having a wood-pole pump jack under you is an interesting experience when they're right- they can slip when moving and they wiggle around. Having a pole break under you will get your attention- you can yell louder than you thought you could! If the top bracket is secured well it might hold you- it did me- but plywood ones will sent you down to earth which is why I won't go there anymore.

    On any scaffolding you need to know what you are doing and do it properly. If you don't do that, don't get on it!

  4. #14
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: 2 x4 scaffolding

    wood leg pump jacks are indeed illegal they have been for some time, atleast in canada. i still see the odd set around town but their not set up their laying in the back of guys shops buried under clutter. there are huge fines for using them. same goes for ladder jacks which are special brackets that hook up to a laddder to which a plank can sit on
    fire up the saw and make some dust

  5. #15
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,583

    Default Re: 2 x4 scaffolding

    OK, now I have to ask what is wrong with ladder jacks? I used them for years and never had a problem. Granted, they stress the lower rung upon which they lever, but if you are using strong aluminum or fiberglass ladders, I see no problem. Of course, you are walking on a foot wide plank without a safety railing. That may be the safety concern, rather than the jacks themselves. I have fallen off a plank a hundred times from a height of 2 feet, but never come near falling from 15 feet! Guess it is just being respectful of the potential hazard.

  6. #16
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: 2 x4 scaffolding

    no saftey rail is specifically the problem as far as i know. i just know a few guys that have been forced to destroy em by the saftey cops
    fire up the saw and make some dust

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