Supply Air Grille Sizing Chart

Known cfm calculate fpm based on known cfm.

Supply air grille sizing chart.

If you are ordering a wall return air grille or return air filter grille please note that these are directional. You may order a horizontal grille blades run in the long direction or a vertical grille blades run in the short direction. First let s define some terms. Use the calculator below to quickly and easily determine the grille airflow.

Proper sizing and orientation of grilles registers and diffusers may seem like such a simple thing but it s an area where confusion and mistakes are commonly made. This is critical if the grille is on the wall. Grille length inches grille height inches please fill in either cfm cubic feet per minute value or fpm feet per minute value. Supply grille sizing chart yoskin.

Duct system sizes and airflow quick chart created date. Written by kupis on january 23 2020 in chart. You must order by the duct opening size width x height. Air flow calculator linear bar grilles.

Supply grille sizing chart yoskin. First calculate the percent of outside air compared to system airflow by dividing the outside air cfm by the total supply airflow. Return a return draws air into a return duct system with negative pressure compared to the space usually via a fixed grille but.