\documentclass[a4paper, 10pt]{article} % for A4 size paper
\usepackage{tikz}


\begin{document}
\pagestyle{empty}

\begin{tikzpicture}[remember picture, overlay]

\tikzset{normal lines/.style={gray, very thin}} 
\tikzset{margin lines/.style={gray, thick}} 
\tikzset{mm lines/.style={gray, ultra thin}} 
\tikzset{strong lines/.style={black, very thin}} 
\tikzset{master lines/.style={black, very thick}} 
\tikzset{dashed master lines/.style={loosely dashed, black, very thick}} 

\node at (current page.south west){
  \begin{tikzpicture}[remember picture, overlay]

    \foreach \y in {1.5, 2.4,...,27.6} 
      \draw[style=normal lines](0,\y) -- (21cm, \y); 
    \draw[style=normal lines] (180mm,0)--(180mm,297mm);
    \draw[style=normal lines] (30mm,0)--(30mm,297mm);

  \end{tikzpicture}
};
\end{tikzpicture}


\end{document}
