A nominal size or trade size for doors is a size "in name only" used for identification. The nominal size may not match any dimension of the door, but within the domain of the door size.For example a 2’/8” wide door can any of the followings
HVHZ Impact = Structural and impact rated (No shutters required) HVHZ Non-Impact = Structural testing is available,but ( units need impact shutters) Florida Wind-Borne Debris (WBD) Impact = Structural and impact rated (No shutters required) Florida Wind-Borne Debris (WBD) Non-Impact= Structural testing is available, but (units need impact shutters) Florida Non-Impact Region = Structural testing is available (No shutters required)