Jason and Luke arrived at the warehouse for the third Head-to-Head: a White Room Challenge. They had four hours to transform their spaces into stunning kitchens, with Luke getting first choice of theme and selecting 'city', leaving Jason to go with 'country.' Luke selected Keenan, Jarrad and Michael for his team, with Jason being assisted by Mel, Natalia and Nathan. Both Sky Blue Team members had their issues, with the tight deadline impacting the level of craftmanship. Luke's team was called up on hanging overhead cabinets upside down, while Peter felt that Jason's effort suffered from some functional problems. The judges had one of the most difficult decisions yet but gave the edge to Luke, sending him into the Top 6.