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How many bags of Concrete?

theknight571

theknight571

Platinum Member
Anyone pour their own slab using bags of concrete?

According to the Quikrete website I need 10 or 11 60# bags for a 36"x54"x4" slab.

This just sounds like a lot of concrete for the space I'm looking to fill.
 
I would trust the Quikrete website calculator over ATOT.


FYI, that house is gonna be really small.
 
lol...sorry... I actually had work to do. I know I couldn't believe it either. 🙂

The portion of the driveway from the sidewalk to the street is about 3 feet narrower than the driveway itself.

We keep running over part of the grass there and a hole is created every so often.

We are in the process of landscaping the front yard, so I figured I'd just fill in that area of "grass" with concrete so no one breaks their ankle stepping into the hole. (I almost did last year....fortunately I just sprained it)

I was going to "trust" the Quikrete calculator, but it just sounds like alot so I figured I'd look for someone with experience...and at the moment there's no one here at work who's done anything like this.
 
I would look into getting a commercial delivery....its probably easier than mixing all that concrete and can ensure a more even consistency.
 
Originally posted by: Jawo
I would look into getting a commercial delivery....its probably easier than mixing all that concrete and can ensure a more even consistency.
Click to expand...

There are trucks that can mix on site just exactly the amount you need, but the minimum cost would probably be twice what you'd pay for the bagged (around here, I think it's a $125 minimum). It really might be worthwhile to do it this way, though, because you wouldn't have to haul all those bags home and mix them and pour them. And the mixture would be uniform, instead of varying wheelbarrow by wheelbarrow if you hand mix it.
 
Originally posted by: theknight571
lol...sorry... I actually had work to do. I know I couldn't believe it either. 🙂

The portion of the driveway from the sidewalk to the street is about 3 feet narrower than the driveway itself.

We keep running over part of the grass there and a hole is created every so often.

We are in the process of landscaping the front yard, so I figured I'd just fill in that area of "grass" with concrete so no one breaks their ankle stepping into the hole. (I almost did last year....fortunately I just sprained it)

I was going to "trust" the Quikrete calculator, but it just sounds like alot so I figured I'd look for someone with experience...and at the moment there's no one here at work who's done anything like this.
Click to expand...


I'm currently building this, so I have some idea what you need.

Just get quikcrete. Ready-Mix will cost you at least double and for your needs it isn't any better.
 
Last summer we built a 36"x48" sloped ramp out of 10 bags of Quickcrete off a buddies carport for his wheelchair. We dug it, framed it, and mixed it right in the hole. It came out mint.

When the consistancy was about right we pushed a pre-cut piece of that rebar wire into it. Then we hung out and drank beer while it cured and floated it.
 
it sounds like you're talking about the approach to the actual driveway ( between the sidewalk and the street). if so, check your municipal laws. where i live, it has to be 7 and 3 quarter inches thick. just letting you know so you don't come up short in your estimate of concrete.
 
Originally posted by: herrjimbo
it sounds like you're talking about the approach to the actual driveway ( between the sidewalk and the street). if so, check your municipal laws. where i live, it has to be 7 and 3 quarter inches thick. just letting you know so you don't come up short in your estimate of concrete.
Click to expand...


at this point nobody is going to check. And technically, this is an apron along side the approach, not an approach proper.
 
Originally posted by: herrjimbo
it sounds like you're talking about the approach to the actual driveway ( between the sidewalk and the street). if so, check your municipal laws. where i live, it has to be 7 and 3 quarter inches thick. just letting you know so you don't come up short in your estimate of concrete.
Click to expand...



where the heck do you live? Are there semi trucks pulling in your driveway or what????
 
I'll check the depth of the concrete already there before I purchase any... but I'm not redoing the "approach" proper....just cementing in a portion of the yard that keeps getting run over.

My other thought was to fill it with rocks.

I live on what seems like a 2.5 lane road with parking on both sides. lol

It's a tight squeeze getting the truck in and out sometimes.
 
Your dimensions (36"x54"x4) work out to 4.5 cu.ft, so figure how much you need from that. IIRC, the 60 lb bags make about 1/2 cu.ft, so that's 9 bags...get one or 2 extra just in case...ordering that much from a redi-mix outfit wouldn't be cost efficient for them, so your other option might be one of the U-Rent places that sells concrete in small trailers . You go get it, and pour it yourself, then return the trailer. We have a couple of them here, not sure about where you live...usually sold at places that sell rock and landscaping materials as well. May not be cheaper, but usually less hassle than mixing the bags, and you USUALLY get a better grade of concrete.
 

Your dimention is 4.5 cu feet +10% will be 4.95 cu feet

8 bags @ 80 lbs = 4.8 cu feet

11 bags @ 60 lbs = 4.95 lbs

IMHO, you should get 9 bags of 80 lbs, or 12 bags of 60 lbs.

A 60 lbs bag will cost you around $5.50 each, or around $60 for 11 bags, however it going to take a bit of work to mix it, unless you are going to rent a mixer (my area is $55 CAD a day).

It is best to call your local gravel yard and price a small load of pre mix that you require and compare it to Quikrete purchase/mixer rental/time/labor.
 
Me and my dad tore out, cleaned, leveled, and poured a driveway, 10'x30', for one of our rental houses, took us like a week to do the whole thing, but damn was that concrete truck nice and useful when pouring all that concrete. Those concrete trucks save us so much time, it was worth the extra price.
 
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