cal.ltx

\documentclass[12pt]{article}

\usepackage[letterpaper,margin=0.2in,landscape,layoutvoffset=0in]{geometry}
\usepackage{tabu}
\usepackage{tikz}

\pagenumbering{gobble}

\begin{document}

\begin{tabu}{||X||X||X||X||X||X||X||}
    \tabucline \\
    \bf Sun &
    \bf Mon &
    \bf Tue &
    \bf Wed &
    \bf Thu &
    \bf Fri &
    \bf Sat \\
    \tabucline \\
    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture}
    \vspace{0.2in} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} &

    \vspace{0.05in}
    \hspace{0.2in}
    \begin{tikzpicture}
        \draw (0, 0) -- (0, 18);
        \draw (0.4in, 0) -- (0.4in, 18);
        \draw (0.8in, 0) -- (0.8in, 18);
    \end{tikzpicture} \\
    \tabucline \\
\end{tabu}

\end{document}