I use Ekahau Pro AI with a spectrum analyzer. It can also do predictive surveys based on floor plans and building materials, etc. If you are a Cisco partner this used to be free on Cisco.com somewhere. I haven't looked for a while.
I have used this tool for a long time. The last time I used it recommended putting in so many APs you couldn't fail, but the cost would have been huge.
I use Ekahau Pro AI with a spectrum analyzer. It can also do predictive surveys based on floor plans and building materials, etc. If you are a Cisco partner this used to be free on Cisco.com somewhere. I haven't looked for a while.