\documentclass{standalone}

\usepackage{tikz}
\usepackage{shapes}

\begin{document}
\begin{tikzpicture}

\fill[color=red](-1,1)--++(0,5)--++(2,0)--++(0,-5)--cycle;

\grid{8}{15}{(-4,-4)}

\ttsquare{teal}{(0,0)}
\ttsquare{teal}{(0,7)}

\end{tikzpicture}
\end{document}