# How to change width of concrete \hline in table?

How can I change concrete \hline width? Maybe does anything exist like \hline[2mm]?

PS: \setlength{\arrayrulewidth}{2mm} is inadequate in my situation because it changes all lines width in a table.

• Use the booktabs package and its \toprule[2mm] or \midrule[2mm] or \bottomrule[2mm] commands instead of \hline, depending on the position of the \hline – user31729 Mar 11 '15 at 16:51

without booktabs you can do

....\\
\noalign{
\global\dimen1\arrayrulewidth
\global\arrayrulewidth5pt
}\hline
\noalign{
\global\arrayrulewidth\dimen1
}


A small 'showcase' of the booktabs rule width facilities.

In addition, the booktabs package allows the change of the separation of rules with respect to the cells. For this, I refer to the manual.

\documentclass{article}

\usepackage{booktabs}

\usepackage{blindtext}

\begin{document}

\begin{center}
\begin{tabular}{p{12cm}}
\toprule[2mm]
\blindtext \tabularnewline
\midrule[5mm]
\blindtext \tabularnewline
\bottomrule[10mm]
\end{tabular}
\end{center}

\end{document}


• The rule widths are slightly exaggerated ;-) – user31729 Mar 11 '15 at 17:06
• Thank you very much. It works. I was surprised why standard LaTex without usage additional packages has no this simple feature? It's rhetorical question) – Gubin Aleksandr Mar 11 '15 at 17:13

If you want to use vertical rules (not recommended in general), booktabs is not compatible. But you can do that:

• either with the boldline package, from the shipunov bundle which defines a \hlineB{num}, a \clineB{c1-c2}{num} commands, and a V{num} intercolumn specifier for vertical rules. Num results in a num × \arrayrulewidth.
• or with the makecell package, which has a \Xhline{length}and a \Xcline{c1-c2}{length} commands.

Demo:

\documentclass{article}

\usepackage{array, makecell}
\usepackage{boldline}
\usepackage[x11names, table]{xcolor}
\usepackage{colortbl}

\begin{document}

\begin{center}
\renewcommand\arraystretch{1.5}
\begin{tabular}{V{2.5}c|c|cV{1.6}}
\hlineB{3}
Fiddle & Dee & Dee \\
\hlineB{2}
\end{tabular}
\vskip 3ex
\begin{tabular}{!{\vrule width2pt}c|c|c!{\vrule width2pt}}
\Xhline{3pt}
Fiddle & Dee & Dee \\
\Xhline{2pt}
\end{tabular}
\end{center}

\end{document}


• Is is possible to get \Xhline set a blue ou red line? I' didn't find any parameter to change the default color black. – pzorba75 Jul 29 '18 at 17:11
• Unfortunately, as far as I know, it's not possible. I once tried to patch the code which defines these lines (and the more or less equivalent lines defined in makecell), but it didn't work. A solution is to use the \specialrule command from booktabs, for which you can remove the padding around rules, and which obeys thearrayrulecolor command. – Bernard Jul 29 '18 at 17:23