Size 4 (more 3000ft) Size 1 the size of your home is aprox (less than - 999 ft) Booking Size 2 the size of your home is aprox (1000-1999ft) Booking Size 3 the size of your home is aprox (2000-2999ft) Booking Size 4 the size of your home is aprox (more 3000ft) Booking