Complex sentence: An 8 foot wide by 8 foot high by 12 foot deep freight elevator is positioned in the delivery area and this provides access to the basement levels for transportation of equipment into the orchestra pit area and the choir dressing rooms.
Split into simpler sentences: An 8 foot wide, 8 foot high, 12 foot deep freight elevator is positioned in the delivery area. The elevator provides access to the basement levels for transportation of equipment into the orchestra pit area and the choir dressing rooms.