Drawing complex multiple multicolumn table

Question

I have read about multicolumn in latex but I couldn't figure this out. How can I draw this table with assumptions that the width of A and B are evenly distributed, likewise for F,G,H,I,J and K.

Please help me. Thank you

Answer 1

Here are two possible solutions. The first solution generates minimum-width columns; observe that they don't have to have the same widths. The second solution uses fixed widths for all columns; I'm assuming that columns 3 thru 8 should all have the same width.

\documentclass{article}   
\usepackage{array} % for '\newcolumntype' and '\extrarowheight' macros
\newcolumntype{C}[1]{>{\centering\arraybackslash}p{#1}} % centered version of 'p' column type
\renewcommand{\familydefault}{\sfdefault} % optional
\begin{document}

\begin{center}
\setlength{\extrarowheight}{3pt} % for a more open "look"

%% first solution: 'c' column type for all 8 columns
\begin{tabular}{|*{8}{c|}}
\hline
& & \multicolumn{6}{c|}{C} \\
\cline{3-8}
A & B & \multicolumn{3}{c|}{D} & \multicolumn{3}{c|}{E}\\
\cline{3-8}
& & F & G & H & I & J & K \\ \hline
& & & & & & & \\ \hline
& & & & & & & \\ \hline
& & & & & & & \\ \hline
\end{tabular}

\bigskip
%% second solution: use 'C' column type, with various widths
\begin{tabular}{|C{8mm}|C{6mm}|*{6}{C{4mm}|}} % set suitable column widths
\hline
& & \multicolumn{6}{c|}{C} \\
\cline{3-8}
A & B & \multicolumn{3}{c|}{D} & \multicolumn{3}{c|}{E}\\
\cline{3-8}
& & F & G & H & I & J & K \\ \hline
& & & & & & & \\ \hline
& & & & & & & \\ \hline
& & & & & & & \\ \hline
\end{tabular}
\end{center}
\end{document}

Answer 2

You can do that with {NiceTabular} of nicematrix.

In this environment, you create 'blocks' with a command \Block and then, you only have to use the key hvlines to draw all the rules excepted rules.

\documentclass{article}   
\usepackage{nicematrix} 

\begin{document}
\setlength{\extrarowheight}{3pt}
\begin{NiceTabular}{*{8}{c}}[columns-width=6mm,hvlines]
\Block{3-1}{A} & \Block{3-1}{B} & \Block{1-6}{C} \\
& & \Block{1-3}{D} & & & \Block{1-3}{E} \\
& & F & G & H & I & J & K \\
\\
\\
\\
\end{NiceTabular}
\end{document}

You need several compilations because nicematrix uses PGF/Tikz.

Answer 3

In this particular case, I would use a tool to create latex tables such as https://www.tablesgenerator.com/ and manually enter in the data.

For example

% Please add the following required packages to your document preamble:
% \usepackage{multirow}
\begin{table}[]
\begin{tabular}{lllllllllll}
\multicolumn{2}{l}{\multirow{6}{*}{A}} & \multirow{6}{*}{B} & \multicolumn{8}{l}{\multirow{2}{*}{C}}                                                                                                           \\
\multicolumn{2}{l}{}                   &                    & \multicolumn{8}{l}{}                                                                                                                             \\
\multicolumn{2}{l}{}                   &                    & \multicolumn{4}{l}{\multirow{2}{*}{D}}                                           & \multicolumn{4}{l}{\multirow{2}{*}{E}}                        \\
\multicolumn{2}{l}{}                   &                    & \multicolumn{4}{l}{}                                                             & \multicolumn{4}{l}{}                                          \\
\multicolumn{2}{l}{}                   &                    & \multicolumn{2}{l}{\multirow{2}{*}{F}} & \multirow{2}{*}{G}    & \multicolumn{2}{l}{\multirow{2}{*}{H}} & \multicolumn{3}{l}{\multirow{2}{*}{K}} \\
\multicolumn{2}{l}{}                   &                    & \multicolumn{2}{l}{}                   &                       & \multicolumn{2}{l}{}                   & \multicolumn{3}{l}{}                   \\
                   &                   &                    &                    &                   &                       &                 &                      &             &             &            \\
                   &                   &                    &                    &                   &                       &                 &                      &             &             &           
\end{tabular}
\end{table}