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Concrete Columns

Concrete is in general calculated in cubic yards (cy).

The concrete required for a column can be calculated as

v =  0.7854 a2 h / 27                             (1)

where

v = required concrete - cy (cu. yards)

a = column area (sq. ft.)

h = column height (ft)

• 1 cubic yard = 27 cubic feet
• 1 ft = 12 in

Concrete required per 1 ft Column Height

Concrete Columns - Round Column Volume
Column Size
(in)

Volume
(cy - cubic yards - per linear foot Round Column)
8 0.013
9 0.016
10 0.020
11 0.024
12 0.029
14 0.040
16 0.051
18 0.065
20 0.081
22 0.097
24 0.116
26 0.137
28 0.158
30 0.181
Concrete Columns - Square Column Volume
Column Size
(in x in)
Volume
(cy - cubic yards - per linear foot Square Column)
12 x 12 0.037
13 x 13 0.043
14 x 14 0.050
15 x 15 0.058
16 x 16 0.066
17 x 17 0.074
18 x 18 0.083
19 x 19 0.093
20 x 20 0.103
21 x 21 0.113
22 x 22 0.124
23 x 23 0.136
24 x 24 0.148
25 x 25 0.161
26 x 26 0.174
27 x 27 0.188
28 x 28 0.202
29 x 29 0.216
30 x 30 0.231
• 1 cu yd per linear foot (y3/ft) = 2.5 m3/m

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