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 Cement slab cost
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maud gonne
Da Kine

352 Posts

Posted - 07/26/2018 :  20:52:14  Show Profile  Reply with Quote
I've got the foundation framework (footings) done & passed inspection. Now my cement contractor has dropped out so I am wondering how much (approximately) it would cost to have the 1200 sq ft slab poured. On a slightly different topic: the catchment tank was erected on compacted gravel but without a cement ring (footing). Does county require the footing?
Update: still looking for a licensed cement contractor to finish the foundation slab, where the previous contractor bailed on me. Any suggestions? Any cost estimates?

Edited by - maud gonne on 08/31/2018 18:42:40

tada
Kamaaina

738 Posts

Posted - 08/09/2018 :  18:58:46  Show Profile  Reply with Quote
Can try call Green Pacific Landscape @756-4788. Contracted to do my driveway. Be back to see it Labor day weekend.
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maud gonne
Da Kine

352 Posts

Posted - 08/09/2018 :  19:35:31  Show Profile  Reply with Quote
Thanks tada, I'll do that
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tada
Kamaaina

738 Posts

Posted - 08/09/2018 :  21:14:03  Show Profile  Reply with Quote
I forgot to mention my property is in Kona. But the crew came over to survey. I assumed they were from Captain Cook which is far enough but the guy I was talking to said they lived in Puna. Shocked me. That's 200 mile round trip. Hope they pay Hilo gas prices instead of $4 Kona gas!!
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dan d
Kamaaina

USA
777 Posts

Posted - 09/09/2018 :  09:24:17  Show Profile  Visit dan d's Homepage  Reply with Quote
Cheapest concrete kohala concrete,also tested some of the best on island,they drive to hilo every day ,good dudes also

Dan D
HPP
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tada
Kamaaina

738 Posts

Posted - 09/13/2018 :  15:57:21  Show Profile  Reply with Quote
So finally saw my new concrete pad and so relieved that it's done. It's about 30ft x 40ft area 4" thick for $8500. The contractor Jesus assured me built like a tank with rebar. Just happy it's done. Though have you ever noticed with enough weathering rebar and basalt end up as iron oxide? Jesus based in Kona but one of his key associates live in Hilo so might have logistics issue.
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Rob Tucker
Kama'aina

9600 Posts

Posted - 09/13/2018 :  16:57:27  Show Profile  Reply with Quote
That was a good price.
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tada
Kamaaina

738 Posts

Posted - 09/13/2018 :  18:03:07  Show Profile  Reply with Quote
Thanks Rob. I hope so. When I say 40x 30 that's my estimate. We originally agreed on $7500. He said the job cost him more than he expected so I sent him an extra $1000!!
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maud gonne
Da Kine

352 Posts

Posted - 09/23/2018 :  12:32:04  Show Profile  Reply with Quote
FINALLY I got a bid to pour the 1200 sq ft house pad slab. However, the bid is for labor only and I would have to pay for the materials. I will do some research, but does anyone have any idea what just the cement itself, not the labor, would

Edited to add, early research comes up with about $4/sq ft for cement only. Does this sound right?

Edited by - maud gonne on 09/23/2018 12:38:01
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Rob Tucker
Kama'aina

9600 Posts

Posted - 09/23/2018 :  14:08:43  Show Profile  Reply with Quote
I suggest you calc the cubic footage and yards yourself and get a quote from a concrete supplier as relates to the total yardage, number of trucks and your location. Diving time figures in with the plant quote. Will you need a pump?

Pouring the concrete is the least of the job. The real work is finishing the concrete. So you want the concrete wet enoough to allow time to finish. You want the 2nd truck to arrive at the right time. Your crew needs enough people to handle the task and the tools and experience to complete.

I am not trying to be alarmist but I had seen some really unhappy results with folks trying to save every possible nickel. There is little as unforgiving as concrete.



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Obie
Punatic

USA
3432 Posts

Posted - 09/24/2018 :  05:54:08  Show Profile  Reply with Quote
1. Arashiro Masonry
BBB Rating: A+
HC 2 Box 6610 Keaau, HI 96749

(808) 982-6672

Carl is the best.He will cover everything and it will be done right.
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dan d
Kamaaina

USA
777 Posts

Posted - 09/24/2018 :  07:33:09  Show Profile  Visit dan d's Homepage  Reply with Quote
Get the concrete fm kohala concrete kawaihae good crew
Aloha

Dan D
HPP
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EightFingers
Punatic

USA
2436 Posts

Posted - 09/24/2018 :  22:20:35  Show Profile  Reply with Quote
Carl Arashiro is a perfectionist. Hes done many large projects for me.
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dobanion
Da Kine

USA
149 Posts

Posted - 09/25/2018 :  05:03:02  Show Profile  Reply with Quote
When I bought 5 yards of standard 3000psi concrete from West Hawaii Concrete, it was just a hair over $200/yard. No extra delivery, even all the way in Kau. The reinforcement was about $300. It was about $4.15 total material cost per square foot. I was able to do the formwork and reinforcement laying myself, with no prior experience, and it turned out well (and level).

I hired a couple extra guys to help with the pour, as I knew nothing, and had zero skill with the touchy parts (screed board and bull float).

As Rob said before, if it's gonna take multiple pours, which it almost certainly will, you gotta be darned sure you time the trucks right. I think West Hawaii Concrete quotes 7 minutes/yard pour time, and charge $1/min after that. But really, it's about getting the concrete to bind together. You don't want half of it setting before the next half comes down. In my case, it seemed like it was setting REAL FAST. It had already been in the truck ~70 minutes when we started pouring.
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