wpc door frame,pvc door frame 1) Fireproof, rotproof, rustproof and dampproof 2) Waterproof and ... and heatproof3) Easy maintenanceWPC and PVC door frame including the door jamb, brickmould, casing, astragal. The WPC door jamb size can be size 4 ... -9/16inches, 5-1/4inches, 6-9/16inches. WPC brickmould size is 2", WPC casing ...