Tables are utilized for large amounts of corresponding information. If you have any information that is repeated over and over with slight variations (for example, a list of garbage pickup fees that vary based on the size of the container), it may be best suited for a table.
Examples of information that should go into a table include:
Multiple dates corresponding to separate information (i.e., tax dates, holidays)
Items with prices (i.e., maps, services)
A list of organizations and their corresponding services
When you are first setting up your site, make sure the Normal and Hyperlink text styles are readable on the alternating background colors of your tables.
Table padding should be set to 2 pixels.
Table width will generally be 100%, but there is no hard and fast rule on this - use your judgment to make sure tables don't look too empty or cramped.
Center align header cells.
Top-left align text cells.
Top-right align number cells.
When listing out dollar amounts in a table, if some of the amounts have cents ($3.45, etc.) you may add .00 to the end of whole dollar amounts to make it easier for users to scan.