At the Warehouse the contestants are introduced to respected Australian Interior Designer, Greg Natale who will be the guest judge for a special coffee table challenge. In their teams the contestants must design a table, using a specific material, to compliment a White Room decorated by Greg. The coffee table that is deemed most original and well suited to Greg’s room wins a working bee on their house, where all the contestants pitch in and renovate for the day. The losing team faces an elimination challenge. The teams design and construct their coffee tables in a tense five hours. Back at the Warehouse they reveal their designs and Greg decides the winner – The Shop team!