At both New Zealand venues it is understood he will have refrigerators to stock a requested 50kg of ice - 20kg to be stocked the night before the concert and the remainder to be delivered at noon on the day of a performance.
Williams likes his team to be comfortable and asks for 30 sofas backstage.
He also requires 280 towels, six fire extinguishers and four different British newspapers.
The 41-year-old singer needs three dressing rooms for himself, six more for the staff and five offices.
Each dressing room must have full-length and desktop mirrors, both with illumination.
One of the rooms is reserved for Williams' father Peter who works as a backup vocalist.
On his recent 10-date tour of Australia, Williams was watched by celebrities including Hugh Jackman, Debora-Lee Furness, Delta Goodrem and UK comedian John Bishop.
At his two New Zealand gigs fans can look forward to the cheeky superstar belting out old-school rock classics such as We Will Rock You and I Love Rock And Roll in a leather kilt as well as his mega-hits Angels and Better Man.