Sonotube Round Concrete Forms Size Chart

Forms are available in lengths up to 12 meters with diameters ranging from 150 mm to 1200 mm. Specifications below are given as an indication for all forms up to 6 meters. Above 6 meters, wall thicknesses are calculated to meet the necessary strength performance criteria.

Diameter (in mm)

Concrete volume per linear meter (m_/m)

Weight per meter (kg/m), excl. liner

Wall thickness (mm)

150
200
250
300
350
400
450
500
550
600
650
700
750
800
900
1000
1200

2.41
2.41
2.41
2.96
2.96
3.51
3.51
4.06
4.06
4.61
4.61
5.16
5.16
5.71
7.36
8.46
9.01

The above weights and thicknesses are given merely as an indication. Changes in temperature, ambient humidity, and storage conditions may result in a slight variation.