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-   -   How much Rebar and mesh is needed (http://www.diychatroom.com/f19/how-much-rebar-mesh-needed-118470/)

Klint 09-27-2011 01:07 PM

How much Rebar and mesh is needed
 
My contractor ask me to go buy the re-bar and mesh from a local store. My slab is 60' x 20' and want the re-bar set on 18" centers how much mesh and re-bar should I buy?

re-bar (3/8") is 20' pieces ($3.15 ea)
Mesh is 8' x 20' ($34.00 ea)

Mr Chips 09-27-2011 01:19 PM

do a google search for a rebar calculator. I imagine there would be a few of these available to figure it up quick and easily

Klint 09-27-2011 01:23 PM

You have to pay for all the ones I found.

Mr Chips 09-27-2011 01:26 PM

i just saw this one, looks like it's free ( hit START THE CALCULATOR at top or bottom of the page) . You need to be smarter than me to understand it, but that shouldnt be too hard

http://www.pjsrebar.com/index.php?op...id=69&Itemid=0

Klint 09-27-2011 01:30 PM

That is to calculate how much weight the re-bar can hold I need how many pieces.

Mr Chips 09-27-2011 02:16 PM

See, i told you i wasn't that smart. :yes:

take a look at this http://www.meet-mr-concrete.com/conc...culations.html maybe that will help more

Bud Cline 09-27-2011 02:29 PM

Why do you need rebar AND mesh?

Seems like an awful lot of steel for no good reason.

Quickly I get: 118 sticks 3/8
8 rolls mesh
$637.40

stadry 09-27-2011 02:50 PM

its more distressing a grown man can't solve this arithmetic problem,,, if would be different IF the question were how much is the required overlap so the bar can be wired OR mesh overlap

bar o'lap - diam of bar X 10 - mesh o'lap - 4" HOWEVER no mesh in the joint(s) OR 5" on either side of it

johnnyconcrete 09-29-2011 03:24 PM

You need about 2000ft of rebar (100 20ft bars). The bars running the 60ft length should overlap at least 18" where the ends meet. You DON'T need wiremesh. Good luck.

jomama45 09-29-2011 08:17 PM

My quick math (rounding up) comes to about 85 rods & 9 sheets of mesh. I,too, wouldn't use all of that steel in the slab, unless you plan on some heavy vehicle traffic.

BTW, are you sure the sheets aren't actually 8' x 15'????

jklingel 09-30-2011 12:33 AM

itsreally: is #3, 18" OC skookum enough? I'd be inclined to shorten that to 12" w/ 3#, or 16" w/ #4 on a 60' slab. Is that overkill? thanks. j


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