HVAC Static Pressure Worksheet
A static pressure worksheet sums every pressure drop the blower must overcome, then compares total external static pressure with the blower table at design airflow.
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Pressure budget
TESP = return + filter + coil + supply + terminals + accessories
Margin
margin = available external static - TESP
Workflow
Estimate airflow, size duct, compute run losses, size grilles, then bring all pressure drops into one blower-budget check.
Related pages
- Duct size calculator - round and rectangular duct sizing from airflow.
- Duct friction loss calculator - run-level pressure loss from duct size and length.
- HVAC static pressure calculator - total external static pressure and blower margin.
- Grille size calculator - face velocity and free-area checks for terminals.