YJ Inc provides structural calculation documents for blade signs, monument signs, pylon signs, awnings, channel letters signage, LED Cabinet Replacement, Roadway Spanning Signs, Billboards Signs, Flat Wall Panels, Cabinet Engineering, and Parapet Signs. Along with preparing engineering documents, we also offer our Structural Observation, Structural Inspection/Survey, and Concrete Mix Design Review services.

YJ Inc is dedicated to focusing on your sign engineering needs in a practical and resourceful manner. We aspire to provide you with consistent service per your sign design criteria and timelines.