\documentclass[a4paper,12pt]{article}

\usepackage[a4paper,margin=2cm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{tikz}

\begin{document}
\section*{Anmeldung aufbauen\hfill\small\normalfont Zuletzt aktualisiert: \today}
\subsection*{Material:}
\begin{itemize}
  \item 2 Laptops
  \item 2 LAN Kabel: RBI Kiste
  \item Mehrfachsteckdose: RBI Kiste
  \item Anmeldebögen (die mit Namen und blanko): OSAK-Druckerzeugnisse
  \item Stifte: OSAK-Büromaterial
  \item USB Sticks: OSAK-Hardware
\end{itemize}
\subsection*{Aufbau:}
\begin{itemize}
  \item Auf jeden Tisch ein Laptop mit LAN und Stromversorgung aufbauen
  \item Anmeldebögen, Stifte und USB Sticks bereitlegen
\end{itemize}
\subsection*{Lageplan:}
\resizebox{\textwidth}{!}{%
\begin{tikzpicture}
	%hörsal bound
	\draw (0,13) -- (0,0) -- (20,0) -- (20,13) -- cycle;
	%chairs
	\foreach \x in {1,4.8,8.6,12.4,16.2}
	{
		\draw (\x,1) -- ++(0,8) -- ++(2.6,0) -- ++(0,-8) -- cycle;
		\foreach \y in {2,...,8}
			\draw (\x,\y) -- ++(2.6,0);
	}
	%technik
	\draw (1,13) -- (1,12.5) -- (3,12.5) -- (3,13);
	\draw (2,12.75) node{Technik};
	%tafel
	\draw (4,13) -- (4,12.5) -- (15,12.5) -- (15,13);
	\draw (9.5,12.75) node{Tafel};
	%waschscrank
	\draw (16,13) -- (16,12.5) -- (17.5,12.5) -- (17.5,13);
	\draw (16.75,12.75) node{Waschen};
	%vorbereitung
	\draw (17.75,13) arc (-180:-90:1.75);
	\draw (19.5,13) -- ++(0,-1.75);
	\draw (18.7,12.75) node{Vorber.};
	%eingang
	\draw (0,9.5) arc (-90:90:1.5);
	\draw (0,11) -- (1.5,11);
	\draw (0.5,11) node[rotate=90]{Eingang};
	%anmeldung schräg
	\draw (1.75,11.5) -- ++(-35:2) --  ++(55:0.75)coordinate(an1) -- ++(145:2)  -- cycle;
	\draw (2.8,11.25) node[rotate=-35]{Anmeldung};
	%anmeldung grade
	\draw (an1) -- ++(-90:0.75) -- ++ (0:2)coordinate(an2) -- ++(90:0.75) -- cycle;
	\draw (an1) ++ (1,-0.375) node{Anmeldung};
	%stuff bereich
	\draw (an2) ++(0:1) -- ++(0:2)coordinate(stuff) -- ++(90:0.75) -- ++(-180:2) -- cycle;
	\draw (an2) ++(0:1) ++(1,0.375) node{stuff};
	%pult
	\draw (stuff) -- ++(0:1.5)coordinate(pult) -- ++(90:0.75) -- ++(-180:1.5) --cycle;
	\draw (stuff) ++(0.75,0.375) node{Pult};
	%food/drink
	\draw (pult) -- ++(0:4) -- ++(90:0.75)  --++(-180:2) --+(-90:0.75) +(0:0) --++(-180:2);
	\draw (pult) ++(1,0.375) node{Essen};
	\draw (pult) ++(3,0.375) node{Getränke};
	%helfer area
	\draw (2.3,8.5) node{Helfer};
	\draw (2.3,7.5) node{Helfer};
	\draw (2.3,6.5) node{Helfer};
	\draw (2.3,5.5) node{Helfer};
	\draw (2.3,4.5) node{Helfer};
	\draw (2.3,3.5) node{Helfer};
	\draw (2.3,2.5) node{Helfer};
	\draw (2.3,1.5) node{Helfer};
	%Absperrung
	\draw [dashed] (0,12.5) -- (1.75,11.5);
	\draw [dashed] (0.9,0) -- (0.9,9.2);
	%label
	\draw (10,-0.5) node {Hinten};
	\draw (10,13.5) node{Vorne};
	\draw (-1,6.5) node{Links};
	\draw (21,6.5) node{Rechts};
\end{tikzpicture}
}

\end{document}