Measurements for Replacing a Rehung Door Brick mold: remove aesthetic casing or trim Height: measure from top to bottom: comer (da coincident door sweep) Width: measure from corner to corner (elo mot include weatherstripping) Jamb Depth; measure tha width of the edge of the door frame Rough Opening: measure the height and width of framed door space Threshold: measure width and height of tri on exterior side (for new brick mold) 1571 MASONITE.