Underfloor Air Distribution Calculator

Design underfloor air distribution (UFAD) systems including plenum depth and airflow.

Area served by underfloor plenum.
ft²
Sensible cooling load for space.
BTU/hr
Temperature of air from plenum.
°F

Results

Total Supply Airflow-CFM
Airflow per Square Foot-CFM/ft²
Recommended Plenum Depth-inches
References: ASHRAE Handbook - HVAC Systems and Equipment, Chapter 57 (Underfloor Air Distribution)