Duct Calc — HVAC Duct Sizer — ASO

By Gun woo Kim on AppTrack Ninja.

Round, rect & flex duct sizing

Size ductwork in seconds — round, rectangular, and yes, flex. Duct Calc is an offline HVAC duct calculator built for techs and designers who need answers on the job, not another subscription. FREE, FULLY WORKING • Duct sizing (equal friction, round) — enter CFM and friction rate (in. w.c./100 ft), get the exact diameter, the stock size to grab, and the velocity in FPM • Unit converter — airflow, velocity, and duct area. CFM · L/s · m³/h at one tap PRO (ONE-TIME PURCHASE) • Flex duct sizing — friction based on published research data (fully stretched to 30% compressed). Compressed flex loses f…

Categories: Productivity, Utilities

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