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  1. #1
    Join Date
    Sep 2005
    Location
    Hyde Park, UT
    Posts
    12

    Default Trailer design, links, suggestions....

    Does anyone have any links for design, parts sources at a discount, etc.?

    I am planning a flat bed utility trailer with 2 3500lb. axles. I want to use tubing rather than channel for the structure to have a stronger/lighter trailer. Planning on torsion axles, led lighting, etc. Size will be 16'x7'ish, enough to allow for the fenders and tires. I was planning on using 2x4 .120 wall tubing for the structure. Questions I would have include proper design of the frame, weight distribution, axle placement (fore and aft), etc.

    Any sources, links or suggestions would be appreciated.

    Thanks!

    Dave
    Dynasty 200DX
    Hypertherm 380

  2. #2
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,899

    Cool

    I have built lots of trailers, look around here for some ideas...Bob

    http://s110.photobucket.com/albums/n...0have%20built/
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  3. #3
    Join Date
    Jan 2008
    Posts
    328

    Default try Northern Tool or East Marine

    Both of the companies have considerable parts available. East Marine also calls itself "Trailer Superstore" or something similar. They have axles in just about any length in case you make something odd-sized. I have a cargo trailer and have also made an open 4'x8' trailer. Northern Tool also has blueprints for about $25 to $40 depending on design. Good Luck

  4. #4
    Join Date
    Nov 2008
    Location
    SW Michigan
    Posts
    7

    Default Trailer questions

    I too, would like to know if there is any secrets to designing a flat bed trailer - I think some refer to them as "Landscape" trailers.
    Any how I'd like to build a 12' x 5' bed trailer, with an 'A' frame coupler, and I'm debating tandem 2000 pound axles. The questions I have are; How do you determine the placing of the axle assemblies. (center of gravity stuff)? By eye balling several ready made trailers, it appears that the single axle is placed 2/3 back from the front edge of the bed. Is this correct? What about the tandem placement?

    Cantankerous Coot Enterprises
    Robert K. Tompsett CEO,CFO,CWM

    Lincoln 225 AC Stick Buzz Box
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  5. #5
    Join Date
    Nov 2008
    Location
    New Hampshire
    Posts
    29

    Thumbs up Axle Placement

    I would think placement would depend on how you were going to load it, you want to avoid excess tounge weight, yet you need some to keep the trailer from going squirrely on you(for ball hitches). if your not sure how your going to load up the bed, try to split the deck length with the center of your axle(s)... on a different note make sure to keep your tounge length approx. 60% of the width of the tow vehicle, so when you turn tight you don't hit

    Good Luck!!

    Kelly

  6. #6
    Join Date
    Jul 2008
    Location
    Delhi, Ontario:
    Posts
    1,969

    Thumbs up nfinch86- Canadian Weldor :

    Quote Originally Posted by deafman View Post
    Both of the companies have considerable parts available. East Marine also calls itself "Trailer Superstore" or something similar. They have axles in just about any length in case you make something odd-sized. I have a cargo trailer and have also made an open 4'x8' trailer. Northern Tool also has blueprints for about $25 to $40 depending on design. Good Luck
    YEA, I Bought Prints from Northern Tool, Great Prints TOO !!! ..... Norm :

    Sunrise Outside My Shop In Delhi, Ontario

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  7. #7
    Join Date
    Sep 2005
    Location
    Hyde Park, UT
    Posts
    12

    Default

    Quote Originally Posted by pyro2 View Post
    I would think placement would depend on how you were going to load it, you want to avoid excess tounge weight, yet you need some to keep the trailer from going squirrely on you(for ball hitches). if your not sure how your going to load up the bed, try to split the deck length with the center of your axle(s)... on a different note make sure to keep your tounge length approx. 60% of the width of the tow vehicle, so when you turn tight you don't hit

    Good Luck!!

    Kelly
    Thanks Kelly,

    This is the type of info I need!


    Will the 2x4 Box be strong enough for the structure? I am planning using the 2.4 box to both support the deck and be the structural frame rather than the traditional frame under deck design. I'll try and draw up my idea to post for critique.
    Dynasty 200DX
    Hypertherm 380

  8. #8
    Join Date
    Jan 2008
    Location
    haslet, TEXAS
    Posts
    109

    Default

    2x4 s plenty big enough but if its 16ga. then H**** no! imop it should be at least .120 wall 0r thicker depending what you hall. if your hauling, for example, a skidstear day in and day out then you should probably upsize to 3/16.
    just my 2 cents

  9. #9
    Join Date
    Sep 2005
    Location
    Hyde Park, UT
    Posts
    12

    Default

    I was planning on .120 wall and no way is a skid loader going on this trailer! I have a Jeep project that will be under 3000lbs. that will hauled on it. Then just odds and ends, 2x4s, hardwood, sheeting, whatever. Maybe motorcycles but never more than the 7000lbs. that the axles will handle (including the trailer itself). So, it would need to be able to safely handle 7000 lbs. plus a safety margin. I don't want some flexy trailer either, needs to stay flat and ridgid.
    Dynasty 200DX
    Hypertherm 380

  10. #10
    Join Date
    Nov 2005
    Posts
    130

    Default

    Here's some info for you -

    http://www.championtrailers.com/UTIL...AILER_KITS.HTM

    You definitely want to price out what you intend to build vs. what you can

    buy. Lots of people selling stuff off these days.

    Check Ebay and Craigslist.

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