I extended the chooks range for about a year with this portable fence. The trouble was, I never moved it around as it was a bit too much effort to do it on my own.  So eventually, the grass all died.  I have now removed it and the girls are back in their yard with occasional outings.  Once the lawn has recovered I will work something else out for them.  Unfortunately they can't "free range" as I lost my fav hen to a dog when they had their freedom. But they are extremely spoilt with a very large and varied diet and I do let them out for short runs late in the day.