hello,
there is a freeby from Bradstone which is a bit simple but hey it's free. it
is here
http://www.bradstone.com/garden/index.html
downloads are under the Library tab.
they say it is a new version ( i used it some years ago) so maybe better
now.
regards
steve.
"Roy Bean" wrote in message
...
I would like to replace our patio with a wider, curved, version, using
sandstone paving slabs that are available locally in three different
widths. I intend mixing the slabs to produce a random effect.

I have tried working this out with pen and paper but it is driving me
bananas. Can anyone recommend some software that will enable me to
experiment with both the overall shape, and the layout of the slabs. This
will be a one of job, so I am looking for something fairly quick, easy,
and cheap, that will give me a rough idea of how many slabs of each size
to order.

Many thanks!