A field-curvable carriage that can contour with complex shapes and curves intended to integrate LED lighting modules for cove lighting. The engineered prefabricated linear carriage which serves as a substructure for the attachment of classic building finishes has an assortment of mechanically predesignated flex points, a flexible fascia, a flexible connection bracket, and captive pins including fixed and adjustable mounting provisions for integration of a variety of electrical and mechanical components.