MONTREAL DOOR THICKNESS Door Thickness: Interior: 1-3/8″ or 1-3/4″; Exterior: 1-3/4″ Raised Panel Thickness: Poplar Doors 1-1/8″; All others 3/4″ Flat Panel Thickness: 1-3/8″ doors get 1/4″ panel; 1-3/4″ doors get 1/2″ panel Construction: Doweled Cope and Stick Standard Doors are available in oak or poplar. What is door thickness? Door thickness is another factor […]