ESD Bench mat. How much coverage??

[diy didi]

Hi.
I have just finished building a new workbench. The top measuring 2000mm x 900mm.
I would like to purchase some ESD rubber matting for the work top. My question is, how much covering will be enough? These mats are expensive here in S. Africa. Is it a good thing to cover the whole top, or more practical to do only a section??

 

[sofaspud]

You only need a section large enough to fit the circuit board being worked on. Before the static-sensitive components are stuffed on the board, they should be kept in conductive foam, wrapped with foil, etc.

 

[DUG]

Don't forget the wrist strap and ESD soldering iron.