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How thick are home-standard poweracks steel?

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Dark_Knight16
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2007/06/18 17:19:27 (permalink)
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How thick are home-standard poweracks steel?

Im going to use 50x50mm x 2.5mm for uprights at 2m length.
and a 1m width at 100mmx50 x 3mm
and 100mmx50mmx3mm for the length on top and base at a 1m length.

can ayone see a problem with this, is the steel thick enough ?
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    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/18 18:24:01 (permalink)
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    Thats about the standard used in most home/domestic power racks. What are you using for the catchers?
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 19:00:28 (permalink)
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    Thanks for the reply

    Possibly like that ....... http://www.dolfzine.com/page633.htm

    Or i could follow the principles of modern racks using this as a guide http://tsampa.org/training/blog/archives/2005/07/
    #3
    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 19:20:47 (permalink)
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    How much does box section cost per m? .. reasonable price
    for 50mmx50mmx2.5mm
    and 100mmx50mmx2.mm.

    Strongman equipment

    If you where going to make a home standard powerack like i sugested what dimensions would you use and thickness, as i know have the opertunity to get different sizes. thanks
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    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/18 21:09:03 (permalink)
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    If I was doing a home made rack I'd use minimum 3mm for the uprights and 4mm wall for the cross members. Box is sold in 7.6mtr lengths and 50 x 50 x 3mm is not to expensive trade but it depends where you buy from as the regular retail is quite expensive and most will charge retail if you buy part lengths.

    If your using 2.5mm wall as an example a 7.6mtr length of 50 x 50 x 2.5mm is going to be around £ 40 - 45 plus Vat retail, Trade can knock approx 50% off that price, so shop around.
    #5
    JohnOvManchester
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    RE: How thick are home-standard poweracks steel? 2007/06/18 21:39:35 (permalink)
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    I'd use scafolding personally
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 21:45:09 (permalink)
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    Same design as this



    But these lengths



    Now i dont know how far from the top to start drilling the holes in A, and how far from the bottom. The holes will be 30mm diameter and 30mm apart.

    Thanks for your help :).

    I will be bolting the top two B frames too the rack instead of welding,for easy transport.
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 21:46:04 (permalink)
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    ORIGINAL: JohnOvManchester

    I'd use scafolding personally



    Haha i allready have a scaffold one, its so dam anoying to move the spotters!
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    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/18 22:23:20 (permalink)
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    So you'll be using 30mm round for the catchers? If so you might want to make them holes 32mm.

    60 x 60 box is good and solid and a better choice than the 50 x 50 but it's not cheap so shop around and check the price difference on full lengths compared to part lengths. With that in mind you might want to revise your cutting list to make the most of the 3mm walled box.
    If you cut 3 of the 2100 and 1 of the 1030 from one length then the rest can be cut from the other length. Thats using just 2 lengths of 7.6mtr box 3 mm wall for the entire rack.

    Use 30 mm round for the catchers.

    You may need to look at securing the feet as that design might be unstable. I notice on the link they secured the feet in a concrete base.
    #9
    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 22:36:35 (permalink)
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    Oh thanks, il pass that onto the fabricator and let him worry about it

    the feet will be flat to the floor instead of raised, and they will be bolted to a concrete floor.

    Im lost with the design of the hooks lol,
    thanks
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 22:43:20 (permalink)
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    Also how far from the top and bottom, would you start drilling holes??
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    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/18 22:45:30 (permalink)
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    If someones doing the work for you put holes over as great a range as possible.
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/18 22:51:26 (permalink)
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    Yes but to many will weaken it , i would follow the plan word for word but some of it was underground.
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    JohnOvManchester
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    RE: How thick are home-standard poweracks steel? 2007/06/19 00:53:38 (permalink)
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    ORIGINAL: Sponge


    ORIGINAL: JohnOvManchester

    I'd use scafolding personally



    Haha i allready have a scaffold one, its so dam anoying to move the spotters!

    Weld on some hooks/notches/slots on the inside edges, then just place a movable cross member between them.
    Then it would be even easier than sliding a bar in and out.

    EDIT...
    Suppose that might be difficult on round metal though.


    post edited by JohnOvManchester - 2007/06/19 00:55:15
    #14
    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/19 01:13:43 (permalink)
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    The holes won't really weaken it. If your having this made by someone don't stress it. He will know what to do and will be able to get the steel cheaper than you are able to.
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    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/19 10:16:23 (permalink)
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    Should i have the holes 30cm from top and 30cm from bottom then ?
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    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/19 11:18:11 (permalink)
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    A little pointless going below the height of a 20kg plate as you won't be able to use them holes for anything

    On the drawing 600mm is to high for the first holes, I would probably do the lowest holes 300mm from the floor level. I would then run them the full length of the uprights.
    #17
    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/19 13:19:05 (permalink)
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    Final plans are these



    How much do you rekon they will charge for that? inc holse drilled, but NOT welded.

    Thanks V much for your help! Im still confused with the hooks
    #18
    Dark_Knight16
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    RE: How thick are home-standard poweracks steel? 2007/06/20 09:46:12 (permalink)
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    Bump


    and is it best to use steel or iron?

    thanks
    #19
    strongman equipment
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    RE: How thick are home-standard poweracks steel? 2007/06/20 12:11:14 (permalink)
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    Your hole spacing is wrong, On that drawing the holes would over lap.

    I don't see the reason for using the 4 mm, If the fabricator has to buy in the 60mm box you would be better keeping to 3mm as he could make the entire thing from two lengths. Otherwise he would have to buy in two lengths of 3mm plus 4mm and he may charge you for this.
    The 3 mm will be more than good enough for a domestic rack.

    If this is to be bolted together you will need plates making to enable you to bolt the side lengths to the uprights.
    You will also need floor fixing plates as the design looks unstaple without them.

    As for costs, Hard to say what someone else may charge so I suggest you pick up several quotations befire you decide.
    In truth if your having this made it may be cheaper to buy a domestic mass produced rack.

    If your going to make a rack you either need to be doing the work yourself, by far the cheapest option or the rack you want needs to be unique / custom to your needs. The rack you show is nothing different to something you could pick up from a large retailer and may work out cheaper.

    Like I said pick up some quotes and go from there.
    #20
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