West Ham will erect a security barrier near the directors' box at the London Stadium for Saturday's visit of Southampton to prevent a repeat of the crowd trouble which marred their last match.
Almost 20 supporters have now been issued with lifetime bans following the shameful scenes during the 3-0 defeat by Burnley on March 10.
Five fans invaded the pitch while hundreds more gathered on the concourse below the executive seats to protest against David Sullivan and David Gold.
The joint-owners were eventually forced to leave their seats for their own safety, with Sullivan being struck by a coin.