# Technical Drawing Fill

So far I have my drawing like this:

Having this code:

\documentclass[14pt,letterpaper]{report}
\input{Preamble}

\begin{document}

\begin{tikzpicture}

\draw[double,double distance=5mm]
(0,0) -- (1.5,0)--
++(0,-6cm)
++(0,6cm)-- (11,0);

\draw[--](0,-.264)--(0,.264);
\draw[--](11,-.264)--(11,.264);
\end{tikzpicture}

\end{document}


I wanted to fill the middle space just like any other technical drawing like this:

Is that possible? How can I do that? the books and manuals are just too enormous to read. I'm sorry for being lazy.

The following specifies the outline, which is filled with a red pattern and drawn with a black line:

\documentclass[14pt,letterpaper]{report}

\usepackage{tikz}
\usetikzlibrary{patterns}

\begin{document}
\begin{tikzpicture}
\filldraw[
pattern=north east lines,
pattern color=red,
]
(0, -.25) -- (0,.25) -- ++(1.75, 0) -- ++(0, -6.25)