Extrutech 3" wide Rigid Door Frame, Item# CB1700, for utility doors, is of an exterior grade, hard, dense, rigid pvc, with a smooth surface of a weather strip door frame profile, use with surface mounted hinges, for 1 3/4' thick door panels, is 3" wide x 3/4" thick. Cut with standard power saws. Assemble with #8 x 1 3/4" pan head screws, available in 7', 14' and 18' foot lengths, with a weight of 0.75 lbs per foot. Can be ordered as stick lengths or 3 sided frame sets ready for assembly with weather stripping and steel reinforced hinge side.