Sonotube Concrete Forms Sonovoid Concrete Voids Blastmaster Blasting Tubes
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Sonovoid® Round Void Forms Size Chart

 

Sonotube Void O.D.

Maximum Support Spacing

Maximum Spacing
Between Hold Down

 

2.25 - 18.00

4' O.C.

18" from end of tube,
then every 4'

 

18.7 - 22.85

3' O.C.

18" from end of tube,
then every 3'

 

24.85 - 36.90

2' O.C.

21" from end of tube,
then every 2'

 

 

 

Standard Sizes Outside Diameters (O.D.) 

2.25"

6.50"

12.00"

22.85"

2.50"

7.00"

12.50"

24.85"

3.00"

8.00"

14.00"

26.85"

3.50"

8.50"

15.70"

28.85"

4.00"

9.00"

16.70"

30.90"

4.50"

10.00"

18.00"

32.90"

5.00"

10.50"

18.70"

34.90"

6.00"

11.00"

20.85"

36.90"