Patent ID: 8133340

Claim:
A method of producing a plurality of doors, comprising the steps of: molding first and second flat wood composite substrates to form first and second universal door blanks, respectively, the first and second universal door blanks comprising first and second stiles spaced apart from one another with each stile having an exterior surface lying in a first plane, first and second interface portions integral and contiguous with the first and second stiles, respectively, and a flat planar portion extending in width from the first interface portion to the second interface portion and coextensive in length with the stiles, the flat planar portion being integral and contiguous with the first and second interface portions, the flat planar portion having substantially an entire exterior surface lying in a second plane spaced from the first plane; securing a first rail member and a second rail member to the first universal door blank to form a first door skin having a first design; securing a third rail member and a fourth rail member to the second universal door blank; and securing a raised panel to at least one of the first and second universal door blanks.