\documentclass[12pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{array}
\newcolumntype{C}[1]{>{\centering}m{#1}}
\begin{document}
\begin{tabular}{|C{2cm}|C{2cm}|C{2cm}|C{2cm}|C{2cm}|}
%\begin{tabular}{|c|c|c|c|c|}
\hline
1 & 2 & 3 & 4 & 5 \\
\hline
1 & 2 & 3 & 4 & 5 \\
\hline
1 & 2 & 3 & 4 & 5 \\
\hline
1 & 2 & 3 & 4 & 5 \\
\hline
1 & 2 & 3 & 4 & 5 \\
\hline
\end{tabular}
\end{document}