Sure you want html??
<table align="center" width="590" height="590" >
<tr>
<td align="center" height="80" colspan="4">central text</td>
</tr>
<tr>
<td align="center" height="80" colspan="2">col</td>
<td align="center" colspan="2">col</td>
</tr>
<tr>
<td align="center" height="40">t</td>
<td align="center" height="40">t</td>
<td align="center" height="80" rowspan="2">t</td>
<td align="center" rowspan="2">t</td>
</tr>
<tr>
<td align="center" height="40">t</td>
<td align="center" height="40">t</td>
</tr>
<tr>
<td align="center" height="30">t</td>
<td align="center" >t</td>
<td align="center" >t</td>
<td align="center" >t</td>
</tr>
</table>
Like this?
solved HTML code of table with various row and column size