I used a plan that Toro provided after I sent them a sketch of my yard. It worked well. Other sprinkler manufacturers also offer the same service.

There are many books available in the public library and I checked out and read most of them before starting my system.

Here is a link that might help

http://www.diyonline.com/servlet/GIB_BaseT/SoftwareGuide.html?session.highlightedTool=SprinklerDesigner&session.channelID=7&session.ccid=7

Also, DIYonline.com has a design service and I used it. It was very thorough too. Also, they have a free book that can be downloaded that is the most complete book I have ever read but I could not find it again. If I find it, I will post the link to you or can also send it in pdf format. It is somewhere in my computer or files.

Thanks for the information dmullen. I am going to go to the library and see what information I can find there.

Mark

Rainbird.com Contact their site and you can download everything you need to know. They will assist you with everything from design to installation to where to purchase supplies and or hire an installer. Good site...Good luck