Sonovoid® Round Void Forms
Spiral wound and laminated using Sonoco’s own recycled paper and adhesives for superior strength, Sonovoid Round forms are engineered for use with cast-in-place and pre-cast concrete. Interior and exterior surfaces are treated for protection against weather and moisture. Choose from plastic, metal, or wood end closures which can be pre-attached by Sonoco.
Sonovoid Round is an economical solution to constructing roof slabs, bridge decks, beams, piers, and pile projects without sacrificing structural integrity or strength.
| Outside Diameter (inches) | Maximum Support Spacing | Maximum Spacing Between Hold Down |
| 6.00 - 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. | 12" from end of tube, then every 2' |
