Measurements for Replacing a Rehung Door Goldbrick: remove aesthetic casing or trim Height: measure rooftop cornerstone Measurement from corner to corner Jamb Depth: measure dhe width of the solos of the door frame Rough Opening: measure the headstand width uf framed door space Threshold: measure bandwidth height of trim on exterior side (far pow brick moldy 11] MASONITE. DOOR THAT OU MORE.