The auditorium of the Abbey is fan shaped with a width of 39 feet at the proscenium and extending to eighty-five feet at the back. Its depth is sixty feet from the proscenium opening to the back wall of the auditorium. The height of the auditorium can be adjusted for different theatre or concert conditions. Seating capacity is 628 of which ninety-seven are located in a shallow balcony. There is access for patrons confined to wheelchairs from the ground level to the foyer, auditorium and toilet facilities. With regard to access, while there are not special facilities in the auditorium, wheelchairs can be accommodated allowing unimpeded viewing of the stage and close proximity to main exits.

The Abbey Theatre remains true to its heritage, regularly re-animating plays from the Irish repertoire, as well as presenting classics from the European and world theatre and new plays alike.