The Kerry Stokes-controlled Seven Group Holdings is stepping up a push to have at least one representative on the board of Boral as the ailing building products group heads to the finishing stages of a major corporate overhaul.

Boral chairwoman Kathryn Fagg already foreshadowed a partial boardroom overhaul on August 24 when the company announced heavy write-downs of $1.35 billion, saying that director John Marlay would be exiting later this year.