Box Drawings Down Single and Right Double

It connects a single vertical line to a double horizontal line. Specifically, it forms a top-left corner that extends a single-line edge downward (│) and a double-line bar to the right (═). It appears in plaintext tables, terminal dashboards, and text art when a decorative double-line header meets single-line column dividers.

This character became familiar through personal computing via the IBM PC's Code Page 437 (assigned to byte 0xD5) in 1981. In text modes where character cells formed the entire screen, dedicated corner and edge characters were a convenient way to construct on-screen windows, menus, and forms.

Unicode standardized these characters in 1993 for backward compatibility. Today, command-line tools and terminal user interfaces (TUIs) still use them to construct lightweight, legible visual boundaries in terminal consoles.

Why does a box drawn with ╒ look broken or misaligned?

Box-drawing characters are designed for fixed-pitch character cells. In proportional fonts, characters have varying widths, which knocks corners out of alignment with the lines below them.

Even in fixed-width environments, not every font connects box characters cleanly to cell boundaries. If an application substitutes a fallback font, lacks the glyph, or applies uneven line spacing, noticeable gaps or misalignments can appear between the corner and its neighboring lines.