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cost of monolithic slab

mattman | Posted in General Discussion on December 29, 2004 05:13am

i’m in upstate south carolina and was wondering if anyone could give me any idea what a monolithic 40*24 slab would cost. thanks

 

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  1. rez | Dec 31, 2004 09:40pm | #1

    Greetings rot, As a first time poster Welcome to Breaktime.

    This post to your question will bump the thread through the 'recent discussion' listing again.

    Perhaps it will catch someones eye that can help you with advice.

    Cheers

     

  2. Piffin | Jan 01, 2005 12:13am | #2

    $4500 rough guess.

    Site work extra.

     

     

    Welcome to the
    Taunton University of
    Knowledge FHB Campus at Breaktime.
     where ...
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    1. brownbagg | Jan 01, 2005 03:31am | #3

      cannot answer. How much concrete?
      How much undercut/ fill dirt?
      How much plumbing?
      How much concrete per yard?
      How much rebar?
      labor rate? I say for the information you gave $ 19 437.81 but I could be off a couple pennies.

      1. Piffin | Jan 01, 2005 04:18am | #5

        Like I said - rough guess
        18 yards 6"deep
        Similar post a month ago and someone said they could do it fopr twelve hundred, someone else wanted nine grand. 

         

        Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

        1. brownbagg | Jan 01, 2005 05:49am | #6

          but a mono has a turn down footing which is usually a foot wide by foot deep here in the sunbelt. thats another five yards so rough guess 25 yards. 384 feet of rebar. Form rental or wood. wood 128 feet of 2x16. 64 3 feet 2x4 for stake, then strong backs. a 2x running $3 here so roughly 38 cents a foot for 2x4 600 feet( $228) a 2x16 10 feet $9 cheapy ($128) concrete $78 a yard, 25 yards ($ 1950) dirts &75 a truck load, about 11 loads. ($825)Look lets do it the easy way. My house is 28 x 40. concrete was 35 a yard my mono slab everything was a hair under $5000. three years ago.

          1. User avater
            jonblakemore | Jan 01, 2005 07:05am | #7

            "my mono slab everything was a hair under $5000. three years ago."Sounds like Piffin was pretty close <g> 

            Jon Blakemore

          2. dIrishInMe | Jan 01, 2005 04:13pm | #9

            $35 a yard!!!!  That's incredible!  I can never remember it being less than $60 in the few areas that I have lived.  Ok - maybe I remember $57.  Generally, I don't think of there being a huge difference in materials prices across the US as long as it's is not in a remote area.  I guess concrete is more just raw materials, which can (apparently) vary widely.  Right now, here in NC, plain 3000 PSI concrete, I think is $77/yd.  It was $71 but I had a letter a week ago with a price increase.  Do you know what the current price is where you live?

            Anyone else got a price just for comparisons sake? Matt

          3. Piffin | Jan 01, 2005 07:02pm | #10

            My last couple loads were between 100 and 110/yd with hot water and calcium 

             

            Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

          4. dIrishInMe | Jan 02, 2005 02:42am | #11

            Yea, but that is a remote area - right?Matt

          5. Piffin | Jan 02, 2005 04:41am | #12

            right - includes ferry fees and waiting time for truck, but crete is still about 85per 

             

            Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

          6. brownbagg | Jan 02, 2005 04:42am | #13

            it running about $75 a yard right now, and the cement plant is 300 feet behind the concrete plant.

  3. jrnbj | Jan 01, 2005 03:44am | #4

    if you Google a bit you can find concrete calculators online....

  4. Davo304 | Jan 01, 2005 11:24am | #8

    40ft X 24ft slab @ 6 inches = approx18 yds concrete

    add for thickened slab edge like Brown bag said  = 128 LF x 12 inch width X 12 inch depth = approx 4.7 cu yds concrete

    approx total concrete needed =23 yds @ 73 per ( Pittsburgh, PA price) = $1,679

    if installing rebar mat on 1ft centers (highly recomended) then you would need approx 90 pieces of 1/2 inch thick rebar, each piece 20 ft long.

    90 pcs rebar @ $5 per ( Pittsb. price)  = $450

    TOTAL COMBINED MATERIAL COST of Concrete & rebar only = $2129.00

    In addition, you have to factor in site prep. forming, and labor...sooo total complete price would range between $4,500 and 5,000... if you hired someone to do this job.

      If you and your buddies did the work free gratis, you could do the entire job "in house" for say $2,500 to $ 2,700. ( add a hundred more for the beer you guys will drink while waiting for the mud to harden enough so you can jump out on it with your knee boards. ha! ha!)

    Lots of Luck

     

    Davo.

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