[Tex/LaTex] How to center text vertically in a table cell

Question

I'm attempting my first Latex document. I'm working on a header for some documents at work. Being slightly overwhelmed by the complexity in general of tables, this vertical alignment issue is making things worse.

    \documentclass[11pt]{article}
    \usepackage{geometry,multirow,array}
    \geometry{
    letterpaper,
    total={170mm,257mm},
    left=20mm,
    top=15mm,
    }

    \begin{document}

    \begin{center}
    \begin{tabular}{|m{3cm}|m{6.25cm}|m{6.25cm}|} 
    \hline
    \multirow{6}{3cm}{logo here} & \multicolumn{2}{c|}{ABCDEFGHIJKLMNOPQRSTUVWXYZ} \\ \cline{2-3} 
                                 & & \\ \cline{2-3}
                                 & & \\ \cline{2-3}
                                 & & \\ \cline{2-3}
                                 & & \\ \cline{2-3}
                                 & & \\ 
    \hline
    \end{tabular}
    \end{center}

    \end{document}

The cell with the alphabet in it appears to align text to the top of the cell. My header was much more complex than this, but I broke it down to this. What am I doing wrong?

Answer 1

I'm not sure you are doing anything wrong. tabular has some odd asymmetries with its line spacing (some people migrate to booktabs package as a result). But, one can make manual adjustments. Here I do two things:

1. I use \addstackgap to pad more vertical space above (and below) the text;

2. I use \\[-3pt] to negatively adjust the space below the entry.

Here is the MWE.

\documentclass[11pt]{article}
\usepackage{geometry,multirow,array,stackengine}
\geometry{
letterpaper,
total={170mm,257mm},
left=20mm,
top=15mm,
}

\begin{document}

\begin{center}
\begin{tabular}{|m{3cm}|m{6.25cm}|m{6.25cm}|} 
\hline
\multirow{6}{3cm}{logo here} & \multicolumn{2}{c|}{\addstackgap[4pt]{%
  ABCDEFGHIJKLMNOPQRSTUVWXYZ}} \\[-3pt] \cline{2-3} 
                             & & \\ \cline{2-3}
                             & & \\ \cline{2-3}
                             & & \\ \cline{2-3}
                             & & \\ \cline{2-3}
                             & & \\ 
\hline
\end{tabular}
\end{center}

\end{document}