drive way gates

  1. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    daughter inlaws wants these gates for her driveway the span is id say 4mtr or thereabouts and she is one of those who knows it all im only a novice at this welding game and I said use 40mm box section then it would be nice and strong but hoo no 40x40x3mm angle iron will do the job
    as she is wanting 3 gates not 2 gates all on hinges so they fold back and just use one if wants to access
    so I thought id ask people in here as they have done driveway gates etc themselves I will no the problems that will accrue
     
  2. Bullet2012

    Bullet2012 Forum Supporter

    Messages:
    1,808
    Location:
    Berks
    Check @KimB thread on bifold driveway gates, that will give you some ideas
     
    stuvy likes this.
  3. 8ob

    8ob Forum Supporter

    Messages:
    6,722
    Location:
    moscow on thames
    Noo0oooooooooo :scared:


    Gates :vsad:


    Bob
     
  4. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    yeah mate I looked what Kim did and she made a fantastic job of those gates that's why I told daughter inlaw to use box section as it would be far better than using angle iron because over a long span the angle iron would be flimsy well that was my thought
     
  5. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    Bifolding gates need to be pretty strong especially if you’ve got three hinged sections. There’s a lot of possibility from them to drop over time.
     
  6. wyn

    wyn Member

    Messages:
    3,158
    Location:
    Cardiff
    I made something with 40x40x3 angle the other week, it is a bit on the "flimsy" side.
     
  7. Parm

    Parm Oh how I’ve missed my play pen this year

    Messages:
    13,104
    Location:
    Towcester
    If she is being an “expert” I would let her build them

    Then she only has herself to blame if they go wrong
     
  8. Ged93 Member

    Messages:
    38
    Location:
    Italy
    Hi , I can give my experience as we got a family father-son company of steel constructions , both civil and heavy industrial .

    You say the gate is about 4 mtr long , bad idea to use a 3 hinged gates solution , you would need very heavy duty hinges and structure to keep it in position , and a very strong pillar .

    In this cases here we use this solution : 2 gates , one longer and one shorter , then apply electric automatic pistons ,like ones from Came or Nice or Roger ( or cheaper brands like BFT ) , so it's possible to open only the small one to go in and out when needed . So the small one could be 1,2 mtr long then the other should be 2,8 mtr , in any case you need strong hinges ( for examples we use ones with ball bearings ) but the entire solution will be cheaper and easier to be assembled .
     
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  9. nickk Forum Supporter

    Messages:
    2,718
    Location:
    Hay-on-wye
    I’ve done a few bi and tri fold ,you have to use square,either solid or hollow,angle will just flex to hell and back,also make them as tall as possible to get the hinges far apart,the greater the width compared to height,the more sag.
     
  10. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    exactly what I said but im wrong in her eyes when I saw how Kim b made the gates square box section for strength
     
  11. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    don't worry im not building the gates for her out of angle iron as I know what's going to happen parm think someone else is going to weld them together and let him have all hassle when they sag and look *****
     
  12. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    exactly what i thought mate to flimsy
     
  13. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    I’d put bearings on the pillar. Do it how Kim done her pillars, braced underground.

    Bronze hinges/eyes on the pedestrian gate.

    Both gate hinges need to be adjustable really.

    You’re looking at a few hundred quid in materials alone before you even get into automation or cladding it. It’s the sort of job I’d be quoting a fair chunk of dosh for!
     
  14. Turbo Member

    Messages:
    3,856
    Location:
    Fermanagh, Northern Ireland
    If she's that much of a know-it-all do not take on the making of these gates. No matter how well you make them she will find fault with them & likely not pay you fully. And being family you'll look bad if you pursue her for the shortfall. Let it be someone else's problem.
     
  15. slim_boy_fat

    slim_boy_fat Forum Supporter

    @Parm had it spot on! :thumbup:. If she's the kind not to listen, tell her she will need to find an engineer who can calculate all the design features and get the gates made.

    Sounds to me that she was hoping you'd do the job for her, preferably free gratis.....:rolleyes:
     
  16. duncans

    duncans Member

    Messages:
    683
    Location:
    leicester
    like I said from the start angle iron isn't strong enough for gates you need to be using the box section then you have a fighting chance to do a really good job the box section is too flimsy but oh no she insisted she has seen gates made out of angle iron .some people will just not listen. I have seen the job Kim b made she made a fantastic job of her gates
     
    Parm and slim_boy_fat like this.
  17. Revs1972

    Revs1972 Forum Supporter

    Messages:
    1,534
    Location:
    Torquay, UK
    Perhaps you could add an angle to the face of the box section........keep everyone happy :laughing:
     
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  18. slim_boy_fat

    slim_boy_fat Forum Supporter

    Or blame a certain widespread illness for not being in a position to get involved....:whistle: :D
     
  19. Lewis_RX8

    Lewis_RX8 Member

    Messages:
    470
    Location:
    Scotland
    How convenient :D , Should put that one in the book not sure how long ill be able to use though
     
  20. Feet 'n Inches

    Feet 'n Inches Out of the rat-race at last

    Messages:
    364
    Location:
    Devon, GB
    Apart from 40 x 40 x 3 angle being way too flimsy, as others have said, they'd look hideous in my opinion. Thick-walled box section or solid bar is the way to go.

    BTW, I'm with @Parm on this. :)
     
    metalmelt, Parm and James1979 like this.
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