Well Sue, that there is not a simple question to answer. Most contractors place them 6 feet apart. There are a lot of questions to answer before you can get a correct response. What room first. Each room has specific needs to ensure you get the most from your recessed lighting. Go to my web site where you can e-mail me and I will try and give you the proper guidance. WWW.lightenupchambersburg.com
Andy G
November 2008