Possible Duplicate:
Column padding in tables
How can I set (modify the default values) the internal, i.e., top/bottom/left/right, cell margins in a table?
Possible Duplicate:
Column padding in tables
How can I set (modify the default values) the internal, i.e., top/bottom/left/right, cell margins in a table?
\renewcommand{\arraystretch}for vertical padding. The rule for horizontal padding might work as well. – Ivan Machado Jul 03 '12 at 15:59