YJ Inc provides sign engineering 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.

Our team has a combined 45+ years of structural engineering experience with 20 years dedicated to perfecting sign engineering.

We have engineered signage throughout the world and have a thorough understanding of differing jurisdictional codes, as well as the current 2021 IBC and 2022 CBC, 2020 LABC, and ASCE 07-16.

YJ Inc. is a Sign Engineering firm offering exceptionally fast (3-5 Day) turn around on engineering documents for permitting purposes, at a competitive fixed per project price, with no add-ons or charges for revisions prior to wet stamped drawings submitted to clients.

Our staff is committed to pro-active problem solving, and are always accessible and responsive, so projects move forward with maximum cost efficiency.

Submit your elevation drawings to quote@yjinc.com or use our quote form. We will review them and provide you with a quote to provide wet stamped engineering for permit acquisition.