How to Compare Design Pressure Numbers for Windows and Doors
What Design Pressure Numbers Mean In Practice Design pressure, often shortened to DP, is the number that tells you how much wind load a window or door assembly can handle when the pressure pushes on it from either side. A DP rating by itself is not the whole story. You also have to account for the test conditions, the frame system, and the location of the opening on the house. On coastal jobs in Redington Beach FL, that difference matters a lot. Design pressure