The UHP is designed to accommodate multiple hinge patterns that occur on insulated steel entry doors. The hinge emboss is fixed but different hinge gussets are supplied for the various manufacturers. Each hinge gusset is numbered thus: #1 = Template hole pattern, #5 = Therma Tru, Taylor / Perma Door, Masonite; #6 = Challenge, Masonite (Castlegate); #7 = Stanley Door Systems.