Solid Brass Regency Style Mortise Double Door Entryway Set (Polished Brass Finish) - this entryway set measures 3 inch wide by 18 inch tall. Various styles of knobs available at no additional charge. Entryway set deadbolt to knob center-to-center distance is 5 1/2 inches. Entryway mortise backset comes as 2 1/2 inch standard and a 2 3/4 inch backset is available if required. The overall grip thickness is 1 5/16 inch. The clearance between the door and grip is 1 9/16 inches. The plates have a thickness of 1/2 inch. The plates have a thickness of 1/2 inch. For a mirrored look – the faux circular disk that matches the plate gives the illusion of symmetry is used on the double entryway sets. This is a complete set and it comes with tubular latch mechanisms, strike plates, complete knob sets, internal mechanisms, deadbolts and all mounting hardware.