All A-League clubs will finally have dugouts in 2015, but Wellington coach Ernie Merrick has slammed Football Federation Australia, accusing them of banning their use for years.

The issue is again in the spotlight since under fire Sydney FC coach Frank Farina called for sideline dugouts after having a drink was thrown on him during Saturday's tumultuous 3-0 home loss to Adelaide at Allianz Stadium.

Farina feels there could be better protection for players, coaches and support staff, who currently use uncovered chairs on the sideline.

A-League boss Damien de Bohun revealed to AAP that as a result of stadium upgrades for the 2015 Asian Cup all A-League venues will be left with dugouts.

"One of the very practical legacy outcomes of the Asian Cup will be covered benches for every ground, so afterwards there'll be covered benches right across the league," de Bohun told AAP.