The Sonotube 12 in. x 12 ft. Round Concrete Form Tube is a single-use, paper-fiber column form for pouring round concrete columns, piers and footings without building wood forms. It is made from high-strength RainGuard rain-resistant paper, so it holds its shape on wet job sites, and it requires only minimal bracing with light lumber or scaffolding to bring it to plumb. The full 12 ft. length can be cut to height on site, and one tube holds approximately 9.42 cu. ft. of concrete.

• Cuts and drills easily for on-site customization
• Pour multiple columns at once with no form cleaning or returns
• Strip 24 to 48 hours after the pour, and no later than five days
• Apply a release agent before pouring, especially with aggressive concrete mixes
• Store vertically in a dry place with ends covered to keep the tube round