Use the MEP Sizing Calculator to define sizing criteria and design constraints for selected duct. Apply filters to generate a table of duct sizes that satisfy the specified velocity, friction, and capacity requirements.

Size ducts by Friction, Velocity, Aspect Ratio, or a combination. Use the sliders to add a tolerance to the parameter.
Filter the results by minimum and maximum sizes.
Sizes that meet the sizing requirements are listed in the table. Select a size and apply to the selected duct.