Driven Posts

Discussion in 'Coop & Run - Design, Construction, & Maintenance' started by JayColli, Apr 7, 2017.

  1. JayColli

    JayColli Out Of The Brooder

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    Aug 13, 2016
    Nova Scotia
    'Afternoon All,

    I'm seeking the advice of more seasoned builders as I'd sooner learn from your follies than my own!

    I intend to build a 10'x12' raised coop for my chooks this spring and am wondering if anyone has had issues with building a walk-in structure on driven posts in an area where the frostline is approximately 3' below grade? The picture below shows a top-down view of how I plan to space the 5"-6" diameter pressure-treated posts and how I intend to run the joists between them to create the floor structure.

    • Posts will be spaced 4' north-south and 3'4" east-west.
    • East-west joists will be spaced approximately 1'3".

    The bottom of the floor joists are going to be leveled from a set point at 2' above grade at the highest point of the build so I'll have at least 2' of space underneath the whole coop to use as part of their run area. Most of the posts won't make it any deeper than 2'6"' - 3'6" deep before hitting rocks and since I'll need at least 2'4" above grade to build on I may only be able to sink some posts in 2' where the ground slopes away.

    SO! My question is... will this probably stand the test of time for maybe 5 years or will it end up subsiding and pulling apart? I don't want to do anything permanent on the site quite yet as I don't know if it'll be the best place for the coop and pouring concrete is expensive as many of you know - I have to work within our household's financial means; especially on extra-curriculars like this!

    [​IMG]
     
  2. eggbert420

    eggbert420 Chillin' With My Peeps

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    Feb 15, 2017
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    You could save $$$ and time by building the floor on skids.
     
  3. JayColli

    JayColli Out Of The Brooder

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    Aug 13, 2016
    Nova Scotia
    Meaning directly on the ground? I agree this would be faster and cheaper but the ground is quite uneven and I'm honestly a bit concerned about rats/mice as they're an awful nuisance in the barn, and that's on a slab.
     
  4. moetrout

    moetrout Chillin' With My Peeps

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    May 5, 2010
    Milan, MI
    What about something like this. It's a base/foundation for 4x4 posts:

    [​IMG]
     
    Last edited: Apr 7, 2017
  5. beela

    beela Out Of The Brooder

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    Feb 14, 2017
    New Orleans
    We built our coop on those, and the biggest problem we had with them was enclosing the undercoop. Because they are wider at the bottom, we had to do a little creative engineering to frame out the bottom. But, it worked and I'm happy with the stability of our coop. You could also look at fence post spikes if you want a straight drop for your coop legs. We've used them in 2 different fences inside of our yard and I will definitely be using them whenever we rebuild our run.
     
    Last edited: Apr 7, 2017
  6. eggbert420

    eggbert420 Chillin' With My Peeps

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    it could still be on post just less of them or on blocks similar to a storage barn . It could easily be moved anywhere you want it.
     
    Last edited: Apr 7, 2017
  7. eggbert420

    eggbert420 Chillin' With My Peeps

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    Feb 15, 2017
    Texas
    [​IMG]
     

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