A fitting for a construction system for a glass panel having a mullion with at least one guide track disposed at least partially along at least one dimension of the mullion, a curved exterior face, and a guide channel extending along a length of the curved exterior face. The fitting may comprise an inner fitting, an outer fitting and a fastener couple the inner fitting to the outer fitting. The inner fitting may be configured to be slidably coupled to the curved exterior face of the mullion. The inner fitting may comprise an angular variation device, a panel support surface, and an arm extending between the angular variation device and the panel support surface. The fitting is selectively adjustable along the guide track while engaged to the guide track and a portion of the glass panel is received between the inner fitting and the outer fitting.

A fitting for a construction system for a glass panel having a mullion with at least one guide track disposed at least partially along at least one dimension of the mullion, a curved exterior face, and a guide channel extending along a length of the curved exterior face. The fitting may comprise an inner fitting, an outer fitting and a fastener couple the inner fitting to the outer fitting. The inner fitting may be configured to be slidably coupled to the curved exterior face of the mullion. The inner fitting may comprise an angular variation device, a panel support surface, and an arm extending between the angular variation device and the panel support surface. The fitting is selectively adjustable along the guide track while engaged to the guide track and a portion of the glass panel is received between the inner fitting and the outer fitting.

A construction section for supporting a glass panel and configured to be coupled to a building structure. The construction section may comprise a wood mullion, an upper fitting, and a gravity fitting. The wood mullion may comprise an elongate body, a pair of cutouts in the upper and lower ends, and upper and lower pockets. The elongate body may comprise an exterior face, an upper end, and a lower end. The pair of cutouts in the upper and lower ends may be configured to receive at least a portion of the building structure. The upper and lower pockets may comprise a void area within the elongate body adjacent the exterior face. The upper fitting may be configured to support at least a portion of the glass panel. The gravity fitting may be coupled within the lower pocket and configured to support at least a portion of the glass panel.