flood vents

Room-by-room enclosure vent sizing using a 1 in2 per 1 ft2 opening basis with the same PDF and DXF export workflow used across resources.

project setup

project name

calculation mode

Per-room keeps the two-opening minimum on each listed enclosure.

florida approved vent

Select a Florida-approved flood vent to carry its FL number into the export.

vent model

net opening area per vent (in2)

Used to convert required opening area into whole vent quantities.

Add each enclosed room or area and its square footage. The calculator fills required opening area and vent count automatically.

room	area (ft2)	required opening (in2)	minimum vents	provided opening (in2)	remove

calculation status

READY

total enclosed area

0 ft2

required opening

0 in2

minimum vent count

0 vents

summary and notes

1 IN2 / FT2

room	area (ft2)	required opening (in2)	minimum vents	provided opening (in2)