How to exceed left margin with longtable

I'm trying to make a longtable that is wider than the textwidth at a certain moment. I've tried different things always ending up with a different problem:

First possibility: If I use the adjustwidth environment the longtabu does not align correctly. The left margin stays fixed and the right margin gets out of the page. This in contrast, if I do the exact same thing to make a tabu (instead of longtabu), it works perfectly. I think using the adjustwidth is the best way to go, but I can't manage to get it working.

Second possibility: I've found a solution using the fullwidth package. That package does the trick on small longtables, but freezes when I'm trying to do it on my big longtable. The command \setlength\LTleft{-2cm} didn't work as well.

The final option I tried was to use geometry. But that changes the margin of the whole page thus making a page break which I'm not interested in. The code I used for this was

\newgeometry{left=1.2cm}
\begin{longtable}
long table stuff
\end{longtable}
\restoregeometry


Here's an example of what I want contra what I get

\documentclass[a4paper]{article}
\usepackage{longtable}
\usepackage{chngpage}
\usepackage{lipsum}
\usepackage{tabu}

\begin{document}
\section{This is the original textwidth.}
\lipsum[1]

\section{This is the width I need for my longtabu}
\begin{tabu} to \linewidth {*{13}{|X[l]} |}
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
\end{tabu}

\section{This is what happens}
\begin{longtabu} to \linewidth {*{13}{|X[l]} |}
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
\end{longtabu}

\end{document}

• setting LTleft to be negative would work with the original longtable, do you really need the tabu fork? – David Carlisle Mar 6 '14 at 13:54
• Arh, great, it finally worked! Thanks you. Why doesn't LTleft affect the longtabu? Also, how do I accept your answer? – user3189626 Mar 6 '14 at 14:09

With longtable you can do this, if tabu has broken it then that's a problem with tabu:-)

\documentclass[a4paper]{article}

\usepackage{longtable}
\usepackage{lipsum}

\begin{document}
\section{This is the original textwidth.}
\lipsum[1]

\section{This is the width I need for my longtabu}

\setlength\LTleft{-1in}
\setlength\LTright{-1in}
\begin{longtable}{@{\extracolsep{\fill}}*{13}{|r}|@{}}
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
01 & 02 & 03 & 04 & 05 & 06 & 07 & 08 & 09 & 10 & 11 & 12 & 13 \\
\end{longtable}

\end{document}