A DP rating is especially important in coastal or storm-prone regions where building codes require higher resistance. It indicates how much wind or structural force a door can safely withstand once properly installed and locked. It also reflects performance against wind-driven air and water infiltration during severe weather events such as hurricanes.
As noted, this door is not DP rated. If you're unsure whether a DP rating is required for your project, consult your contractor or local building official.
