Abstract: Wing frame of the type suitable to support a plurality of movable slats (15), comprising at least substantially vertical uprights (14) and substantially horizontal crosspieces (13) and at least a substantially vertical auxiliary profile (12) coupled with at least an upright (14) at an intermediate position between the latter and the heads of the cross-pieces (13) cooperating therewith.

Abstract: Shutter for windows, and relative method to fit said shutter, comprising a rim (12) consisting of vertical uprights (14) and horizontal cross-pieces (13), an outer assembly box (11) suitable to be anchored at the sides (20) of a window opening, and a plurality of blades (15) attached transversely between the vertical uprights (14) and suitable to selectively obstruct the light filtering through the rim (12), wherein the assembly box (11) consists of a plurality of profiles (17) of equal section and substantially quadrangular comprising, on one side, a coupling tooth (16) defining substantially plane supporting surfaces (19a, 19b) able to cooperate with mating surfaces of the sides (20) defining the window opening and/or with mating surfaces of the profiles (13, 14) defining the rim (12) of the shutter (10).