A casing bead having a U-ish or J-ish shape comprises, consists essentially of, or consists of an item, e.g., sheet metal, formed in a bent shape. The shape is formed of a first section, followed by a second section, a third section, and a fourth section. Alone, the casing bead's first and fourth sections have interior uninterrupted facing surfaces, and the second section is substantially perpendicular to the first and fourth sections.
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