How deep for a footer?

Discussion in 'Community Forum' started by KYHUNTER14, Sep 30, 2007.

  1. KYHUNTER14

    KYHUNTER14 10 pointer

    1,430
    0
    Oct 17, 2004
    Ashland, KY
    I am having a 24X36 block garage built and was wondering how deep to dig the footer. The guy who is going to lay the blocks told me, but I didnt write it down. Any of you guys know about stuff like this?
     
  2. NonTyp

    NonTyp 12 pointer

    3,675
    0
    Apr 9, 2006
    Horntown
    I think 12" deep is the code minimum. We always dig with a back hoe and they will be a min of 12" deep and 24" wide.
     
  3. WBBP

    WBBP 12 pointer

    2,819
    0
    Nov 24, 2003
    It is different in different parts of the country depending on your winter temperatures. Non-typical is about right.
     
  4. Multidigits

    Multidigits BBBC Members

    17,760
    0
    Dec 10, 2001
    Vine Grove, Ky, USA.
    12" would be an absolute min. The freeze line in N. Ky. is at least 16" If your footer is down to undisturbed earth, you can get by with a 12" or so footer. Just use a 2 x 12 if your going to use 2 x 12's on your garage door header and clean them off after your concrete is cured.
     
  5. 6.5x55swedish

    6.5x55swedish 12 pointer

    2,681
    0
    May 27, 2005
    Lexington
    Up north we always put them in at 4 ft deep because they have to be below the frost line. Driving a concrete mixer around lexington for the past three years I have seen alot of them put in and often they are pouring the concrete level with the ground and it passes inspection..... I personally would dig it down 24 inches and then pour 8 inch deep footer....that would give you room for three runs of block on the footer.
     
  6. trader rob

    trader rob 8 pointer

    732
    0
    Apr 5, 2004
    ne ky..
    i always liked mine 16, i is a bad feeling to see a crack running up your block after a year or so, due to freeze and thaw.
     
  7. leeand49

    leeand49 Fawn

    28
    0
    Aug 30, 2007
    I would go 16-24 inches.Takes more concrete but you need to get below the freeze line or you will have problems later on with cracking block or doors that may stick.
     
  8. 6.5x55swedish

    6.5x55swedish 12 pointer

    2,681
    0
    May 27, 2005
    Lexington
    You can dig it as deep as you want and it will take the same amount of concrete. Just the deeper you go the more runs of block it will take to get it back up to ground level. National code for a footer is 6 inches deep of footer mix 2500-3000 psi.
     
  9. DUCKDODGERS

    DUCKDODGERS Fawn

    16
    0
    Dec 18, 2005
    Louisville
    I believe the code in kentucky is 18". If your county does not make a mandatory footer inspection prior to being poured, ask your county inspector. The place where the permit is issued will be able to tell you how to get in touch with him. I know the concrete is to be 2500 at the min. but I recommend 3500 - 4000 myself.
     
  10. predator

    predator 12 pointer

    2,788
    0
    Nov 23, 2006
    Leitchfield, Ky.
    NonTyp is right, but should add that we dig the footers 18" deep and 24" wide. Then pour the footer 12" thick, that way upon finish grade the BOTTOM of the footer is at least 18" below finish grade, this is to get it below frost line. I like to place 2 runs of 1/2" rebar in the lower 1/3 of the footer.
     
  11. carpenterguy

    carpenterguy 8 pointer

    935
    0
    Nov 9, 2006
    Burkesville, Ky
    that's how we do it also... works everytime..;) the rebar is a must! and the 18" minimum is best even though we don't have much of a winter.. good luck
     
  12. Rob7

    Rob7 6 pointer

    262
    0
    Oct 18, 2004
    depth

    Here in fayette county the minimum depth is 24" for the bottom of the footer. We typically pour a 12" deep x 24" wide footer no matter what we are constructing. Good luck.
    Rob...
     

Share This Page