A window envelope without the window patch material.

When a portion of a blind is cut out to allow for tile or molding that causes a narrow section in the window opening and is usually found at the base of a bathroom or kitchen window.

a blind which has a small rectangular area removed from it to avoid obstructions, usually from one of the corners or from the bottom

a procedure where a portion of a blind or shade is cut more narrow than the rest

A cut-out is specified when part of a blind or shade must be cut to a more narrow width than the rest to allow clearance of an obstacle. Cut-outs are often used to accommodate tiles, molding, window cranks or other features that narrow a portion of the window opening.