Sonotube Round Concrete Forms Size Chart

Forms are available in lengths up to 60' with diameters ranging from 6" to 60"

Concrete Requirements (Expressed in cubic yards for columns of various heights)

Diameter
(in.)

Height of Column
    3ft.                       6ft.                         8ft.                      10ft.                     12ft.                     16ft.                         20ft.         

6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
40
42
48
54
60

.058
.103
.162
.233
.317
.414
.523
.646
.782
.931
1.093
1.270
1.454
1.655
1.868
2.094
2.586
2.850
3.723
4.712
5.817

.073
.129
.202
.291
.396
.517
.654
.808
.978
1.164
1.366
1.584
1.818
2.069
2.335
2.618
3.232
3.563
4.654
5.890
7.272

.088
.155
.242
.349
.475
.620
.785
.970
1.173
1.397
1.639
1.901
2.182
2.483
2.802
3.142
3.878
4.276
5.585
7.069
8.727

.117
.206
.323
.466
.634
.827
1.046
1.293
1.565
1.862
2.186
2.534
2.909
3.310
3.736
4.189
5.171
5.701
7.446
9.424
11.634

.146
.258
.404
.582
.792
1.034
1.310
1.616
1.956
2.328
2.732
3.170
3.636
4.138
4.670
5.236
6.464
7.126
9.308
11.780
14.544