Padlocks range from many different sizes and qualities. You can order them in either keyed alike groups, where one key will work as many locks as you like, or you may prefer to have them on a master key system, with one key works for all the locks, and a seperate key for each individual lock.

When padlocking gates, you may want to have a shield over the shackle, as this stops the use of a bolt cutter.
Below is a few of the many different types of padlock you can have...
Padlock Models