Question 784114
L x W x D = volume

24 x 36 x 3.43 = 2963.52   there are 27 cubic feet in a cubic yard, so divide by 27 = 109.76 cubic yards, 

i've done concrete for 14 years, in the industry we add .05 to the total to account for low spots.  so 109.76 x 1.05 = 115.24

when you order concrete you have to order in whole yards, so round up to the next yard,  116 cubic yards total.