Sonotube Calculator - Cylindrical Form Volume
Calculate Concrete for Cylindrical Forms
How to use: Enter the diameter and height of your sonotube in inches. Common sizes are 8", 10", 12" diameter tubes for deck piers and building columns.
Common Applications: Deck footings, building columns, light posts, and mailbox posts.
Frequently Asked Questions
What size sonotube do I need for a deck?
For residential decks, 10-12 inch diameter sonotubes are common. Depth should extend below the frost line (typically 36-48 inches depending on climate). Always check local building codes.
How much concrete for a 12 inch sonotube?
A 12-inch diameter × 48-inch tall sonotube requires approximately 3.14 cubic feet of concrete, which equals about 6 bags of 80lb concrete mix.