If you would like one of our installation technicians to install your new GSP In-Wall system for you we will call and set up a scheduled install date and time. Standard installation is for a 16" on center 2" x 4" interior wall with 1/2" drywall. If you know you have some thing other than a standard installation let use know please. There may be an additional charge for a nonstandard installation. Also note a trip charge will be charged if more than 30 miles from our Oshkosh office.