Net Area of Walls

<< Click to Display Table of Contents >>

Navigation:  Calculations > Equations > General >

Net Area of Walls

Previous pageReturn to chapter overviewNext page

NWA = GWA - (DA + GA)



 NWA        = Net area of wall, square feet (ft²)
 GWA        = Gross wall area, square feet (ft²)
 DA        = Non-glass door area, square feet (ft²)
 GA        = Non-skylight glass area (including glass doors), square feet (ft²)


Ref: Manual J 8 - Page 3-1