Give your door a traditional look with the Harrison Mortise Entry Set with Providence Knobs. This sturdy design is made of forged-brass, and features enhanced, high-tech mechanics that promote silky smooth, trouble-free operation. Choose from a host of popular finish options.Doorset dimensions:Providence knob: 2 1/4" DBackplates: 10" H x 2 11/16" WMortise lock dimensions: Backset: 2 1/2" or 2 3/4" Lock case: 5 1/2" H x 3 1/4" W x 3/4" thickLock face plate: 8" H x 1 1/4" WStrike plate: 4 7/8" H x 1 1/4" W The lock includes a 1 3/8" cylinder and 2 standard keys.Mortise lock box: ANSI F20 function with stop/release buttons.This set is designed to fit standard exterior doors of 1 3/4" thickness that open inward. For reverse handed doors that open out, thicker doors, dummy sets, double cylinder option, or F13 function without stop/release buttons, please call for assistance. This lock has egress and can cause lock outs if the stop button is not disengaged when exiting the door.