how do I measure how much what I need when I am going to a lay 36 ft x 6 ft of concrete

36 X 6 = 216 square feet
216 sq ft X depth = cubic feet
cubic ft divided by 27 = cubic yards
order by the yard
figure a waste factor of at least 10%

Thanks for the reddie FBE.
Your depth of understanding is unique to say the least.

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FlyingBlueEagle...

Just wondering if you are disagreeing with HKSTROUD or with SMEARCASE..? Seems to me you just gave HKSTROUD a reddie you intended for Smearcase..? Harold only suggested using depth as feet, Smearcase stated absolute??

I just wondered because both Harold and Smearcase gave what seem to be a reasonable answer/statement... For example, If figure for a 4" depth of concrete why can't we figure depth as .333 feet...? Or if 3" depth as 0.25 feet? Then can use cubic feet and convert to cubic yards exactly as Harold suggested?

Harold's example here... 36ft x 6ft = 216square feet, then 216 square feet x 0.333 feet depth(4" pour) = 71.92 cubic feet, 71.92 cubic feet divided by 27 = 2.664 cubic yards... PLUS 10% waste suggests about 3 yards... right?

I am no concrete man here by any means just that the math seemed reasonable... ;)

Let me know will you...

Thanks... MARK