I supose it depends on whether the site is level and how much weed is in it. I have been slicing turf off of my garden to make into beds, put it on a bank, 2 turfs deep and its well growing.
I dare say you will get lots of real practical advise on here, so wait for some more comments. Personally, i would if it was level and weed free. Saves a lot of work if you want a quick job.
Agree with Edd - it'll just curl up and die If a job's worth doing it's worth doing well, and all that jazz
Ah so it was a cowboy who told me this, I thought as much...I have laid turf before but when he told me this I thought I was missing a trick....Thanks everyone
...it's a bit like the cowboy who told me that he could lay laminate flooring over carpet...
I will keep an eye on my bank then, i wonder how long it will take to die.