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Thread: Deck foundation

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    Join Date
    Jun 2008
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    Tucson area, AZ
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    Deck foundation

    What should be the foundation for the deck supporting posts to rest on? Should I use concrete blocks? I don't want our deck posts to sink in the first rain!
    Our ground is fairly firm, btw. A hard rain can make it a bit mushy, though.
    Above ground soft side Omega pool
    20 feet diameter, 4 feet deep
    Hayward sand filter
    Hayward 1 HP Matrix pump
    Hayward Aquabug Automatic Pool Cleaner

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    Mod Squad JohnT's Avatar
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    SW Indiana
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    Re: Deck foundation

    Where do you live? Winter weather is important when planning a foundation.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Mar 2007
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    Texas
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    Re: Deck foundation

    Dek Blocks
    27' Round AG, 17,200 gallons, sand filter

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    Tucson area, AZ
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    Re: Deck foundation

    AZ - in the middle of the desert. Go months without rain, then it can rain buckets during the monsoon in the mid-summer. No bad frost, but we do get some below freezing nights in mid-winter, usually no colder than upper 20's, and once in a very great while (like once every 10 years or so), snow.

    I saw dek blocks on the net. That good, huh?
    Above ground soft side Omega pool
    20 feet diameter, 4 feet deep
    Hayward sand filter
    Hayward 1 HP Matrix pump
    Hayward Aquabug Automatic Pool Cleaner

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    MikeInTN's Avatar
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    May 2007
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    Middle Tennessee
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    Re: Deck foundation

    Check with your local codes department first, if you have one for the middle of the desert.

    I was thinking of using dekblocks too, but was told by our local codes folks that under no circumstances would they accept it. The requirements here are 16"x16"x12" concrete footers.. I just hope I never have to dig them back up.

    (If I haven't mentioned it, the codes people here are very anal - they wouldn't let me install the electrical feed for the pool - said I had to have a licensed electrician do it. Doesn't matter that I have a BS in Electrical Engineering...I don't have a license... )
    24' x 52" AGP - approx 13,500 gallons
    Pentair Optiflo 1 hp/2sp pump w/ Swimpro Voyager 150 sq ft cartridge filter
    Intex 8110 SWCG
    "Fear the Schnauz!"

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    Mar 2007
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    Texas
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    Re: Deck foundation

    Quote Originally Posted by Swimgirl

    I saw dek blocks on the net. That good, huh?
    Well My deck is built with the deck blocks, I have had mine since 2003, and have had NO problems at all
    27' Round AG, 17,200 gallons, sand filter

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    Join Date
    May 2008
    Location
    Northwest Arkansas
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    11

    Re: Deck foundation

    usually you only have to pour footings to a depth below the frost line to prevent "heaving." So I do not think you have that problem in a warm climate.
    lartay

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    Suwanee, GA
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    Re: Deck foundation

    Quote Originally Posted by MikeInTN
    The requirements here are 16"x16"x12" concrete footers..
    That's one **** of a footer for a foot traffic deck.

    Once great advantage of having an AGP is it's not permanent,so why should your deck be? I'd say blocks. I have no plans on moving my pool or deck for as long as I live here so I used Sonotubes buried at least 2' down.
    Gary
    21k gal SW, IG Gunite PebbleSheen, 1HP Jandy, Jandy 340 filter, Polaris 280, 17' fiberglass slide w/ 2HP pump.

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