An adjustable strike mounting system having a cover plate, which can be mounted to an astragal having a housing, which has a longitudinal channel having retention guides, vertically slidable blocks, which have transverse slots, having horizontally slidable threaded elements, and spring leaves, which are adapted to hold the vertically slidable blocks in selected positions, the cover plates adapted to provide mounting surfaces for the strike plates, the cover plates abutting the retention guides, the strike plates having apertures, which can be aligned with locations of the locks and deadbolts quickly, easily, and efficiently, the adjustable strike mounting system facilitating and allowing vertical and horizontal movement of the strike plates in the astragal, facilitating location and alignment of fasteners, and minimizing loss of the fasteners within the astragal and resultant jamming of the astragal and other operating parts of the astragal.
