Creative Entryways having more than 85 cumulative years of experience building, designing, and engineering wood doors are excited to introduce three very important features. Our doors have been tested and approved to meet a design pressure (DP) rating of 45. To qualify for a dp 45 rating, our doors were subjected to extreme testing conditions that simulate hurricane-force winds up to 150 mph. Our doors also qualify for TDI (Texas Department of Insurance). The door jamb is constructed of a paintable hard polymer shell with an interior close cellular structure that prevents water absorption while offering 2 times the screw holding strength than wood. Three 4in. Steel ball-bearing hinges were applied. Prefinished at our factory allows us to finish all edges of the panels, rails, and styles before the assembly of the doors. This is extremely important for the long life of the doors, minimizing panel issues. Our finish is a 9-step oil-based polyurethane process.