What it checks
Lay out a concrete-encased duct bank and calculate its overall cross-section dimensions.
Engineering Zone
Duct Bank Size Calculator
Calculate complete concrete duct-bank width and height from duct rows, columns, spacing, diameter, and cover.
Using this calculator
Inputs and method
Enter the number of rows and columns, outside duct diameter, clear edge-to-edge spacing, and concrete cover on each side. The sketch and total width and height update together.
Design use
Confirm duct type, installation tolerances, reinforcement, thermal design, bend geometry, trench conditions, and owner requirements separately.
Engineering aid only. Verify the inputs, assumptions, results, and applicable project requirements before use in a final design.