An example functional member of a refrigerator, freezer or icemaker having two closing members intended to be separated by a first distance includes a structure to implement a function for the refrigerator, freezer or icemaker, and a gap gauge dimensioned for use in aligning the two closing members apart by the first distance. An example functional member is a divider, a hinge cover or a scoop having a gap gauge with a blade-shaped, an oval or a rectangular cross-section, where a dimension of the cross-section is the first distance. An example gap gauge may be further dimensioned for use in aligning one of the two closing members and a third closing members, or two additional closing members apart by a second different distance.