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Thread: Tray Bottom Frame to Support Timber Floor V's Checker Plate

  1. #1
    Lionelgee is offline YarnMaster Silver Subscriber
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    Tray Bottom Frame to Support Timber Floor V's Checker Plate

    Hello All,

    Does anyone know if there is a difference in the material and dimensions of the bottom frame when the flat tray floors are made for a timber floor or a checker plate floor?

    Snowy my 110 made in January 1993 came with a timber floor which is now very stuffed. I am leaning towards replacing the timber floor with either steel or aluminium checker plate. Apart from having to pack up the level of the floor - because the timber floor is thicker than checker plate is - would I have to upgrade the bottom frame to be stronger for the checker plate? Or did the tray manufacturers use the same materials and spacings regardless or whether it was going to have a timber or checker plate floor?

    I only have Snowy to base measurements and spacing off and I do not have a checker plate floor tray back to find out if there are any differences in the bottom frame.

    Kind regards
    Lionel

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    What's under there now? From memory my old ute had 50x25 rhs under the steel checker plate floor.
    Steel floors are a lot slipperier than a timber floor, everything not secured usually ends up going for a slide.
    '93 D1 V8 auto
    '93 D1 200Tdi 2-door, ARB's, MD transfer, sill tanks, winch, 2"lift.......
    '95 D1 V8 auto......gone
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  3. #3
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    JDNSW is offline RoverLord Silver Subscriber
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    The frame requirements for steel or alloy would probably be less than for wood, although it all depends on what thickness of wood vs what thickness of metal.

    My big trailer has the decking made from what are essentially alloy planks that include stiffening framework in the extrusion, and look to have been made as a drop in replacement for wooden planks.. Might be worth looking for something like that. Would also be easier to handle when replanking it. (I bought the trailer second hand nearly thirty years ago, so have no idea where they came from!)
    John

    JDNSW
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    Truth be told the hardwood floor and the plate would probably be about the same weight.
    ​JayTee

    Nullus Anxietus

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    2000 D2 TD5 Auto: Tins
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    OKApotamus #74
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    Quote Originally Posted by Rick1970 View Post
    Steel floors are a lot slipperier than a timber floor, everything not secured usually ends up going for a slide.
    Not wrong. I had a Mazda 1 tonne tray once, with a steel tray. Used to carry steel bins full of blanks for Unbrako. Didn't really matter how tight the straps were, they'd move. Fixed that by having some old pieces of conveyor belt, which were always in the way when I wasn't carrying steel bins.. I'm sticking with timber on the 109. It's a better noise insulator as well.... perhaps that won't matter on a series, or a Deefer.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

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    The big things are probably going to be the gunnel rail height and the positioning of the cross members.

    Gunnel rail height will be different - it allows for the thickness of the timber - you will just end up with a big step.

    Xmember spacing - (timber runs front to back, sheet runs sideways), the sheets need to join over a cross-member and not in the air, so there needs to be a cross-member where your sheets join. We put a cross-member in that location, but you may need to cut the sheets to suit where your cross-members are. You will also have to work out how you want to support where the sheet butts up to the gunnel rail, whether you support it with a member or you weld it directly.

    Hot tip, only stitch weld the floor from underneath (we do 25mm weld every 200mm) otherwise you will buckle everything with a continuous weld - the weld is there just to hold the floor in place, and you will end up with weld lumps in the floor.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  7. #7
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    Oh sorry, I missed a bit.

    For spacings. Each to their own, however we run cross-members under sheet at approx 400mm spacings. You can run them at 600's but we've gone away from that as the weight difference is minimal, but the strength difference is a lot better.

    For the sheet, 2.1mm checker floor plate or 2mm hot rolled. The checker is a stronger floor as the steel is a little bit stronger and of course you have the check pattern in it which reinforces it. Either is fine as long as its not a tipper.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

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