The number #1 type is chicken fencing you can use is called:
[FONT=Lucida Grande, Verdana, Arial, sans-serif]Galvanized hardware cloth - It's the best choice of fencing for enclosing a chicken coop and run area to protect chickens from predators. The best size will be 1/2 inch hardware cloth which should be 19 gauge in thickness. This type of cloth comes in 3, 4, 5 and 6 foot height rolls. The length of the rolls normally come in 5, 25, 50 and 100 foot.[/FONT]
[FONT=Lucida Grande, Verdana, Arial, sans-serif]Chicken Wire - [/FONT][FONT=Lucida Grande, Verdana, Arial, sans-serif]This is made of wire woven in a hexagonal pattern. It's great to use in keeping chickens inside an enclosure but does very little in keeping some predators out. [/FONT]
[FONT=Lucida Grande, Verdana, Arial, sans-serif]One choice is using both these types of wire fencing which will cut down on overall cost and still allow for protection. [/FONT]
[FONT=Lucida Grande, Verdana, Arial, sans-serif]The chicken wire can be first used then hardware cloth covered over that. The hardware cloth should be first buried in the ground of at least 10" deep then up to a 3 foot height. Hardware cloth should also be used over any windows, doors, etc which will be open to the outdoors.[/FONT]