A curtain wall mounting system adapted for cantilevered support of at least one structure outwardly therefrom. The curtain wall mounting system including an anchor plate having dual plates and adapted for integral mounting with a curtain wall web section. The curtain wall web section includes one of a hollow tongue web extending outwardly of a curtain wall vertical mullion in a first direction and an integrally formed flange region extending outwardly of the curtain wall vertical mullion in the first direction. The curtain wall web section includes a first set of fastening apertures oriented transversely to the first direction and formed. The anchor plate includes at least one generally planer body portion having a first set of mating apertures adapted for alignment in registry with the first set of fastening apertures of the web. The anchor plate further having a second set of apertures adapted for securing structures outwardly therefrom.