45+ Years of Sign Engineering Services Nationwide
Our team of engineers is committed to quality signage drawings and engineering calculations for all your permitting needs.
Design Review
We review your sign design carefully to understand structural requirements, materials, and installation conditions.
Engineering & Calculations
Our licensed engineers prepare accurate calculations and drawings that meet local codes and permitting standards.
Stamped Delivery
You receive complete, digital-stamp, pdf documents ready for submission, inspection, and installation without delays.
Design Review
Engineering & Calculations
Stamped Delivery
Experience You Can Build On
YJ Sign Inc specializes in structural engineering for signage with decades of hands-on experience supporting projects nationwide.
Our vision is to deliver dependable, precise engineering that protects public safety while simplifying the permitting process for contractors, fabricators, and designers through responsive service and consistent quality.
Founder of YJ Signs Learn More About Us
- 45+ Years of Experience
- 100% client Satisfaction
- 500+ completed projects
- 59 States & Provinces Licensed
- <1 Day Response Time
Engineering That Keeps Projects Moving
For more than four decades, our team has helped sign companies move projects from an early sketch to stamped drawings that satisfy permitting departments across the country. We focus on practical engineering, predictable turnarounds, and drawings that help reviewers understand exactly how a sign will hold up in real conditions. Every set arrives through email or by mail, depending on what you prefer, and our communication stays steady throughout the job.
Many clients come to us after struggling with delays or unclear engineering from other firms. What they notice first is how straightforward our approach is. We study the structure, ask a few targeted questions, and quickly produce a drawing set ready for installation and permitting. Our engineers understand the wide spread in code requirements from one region to another, and we adapt without slowing your timeline. We pride ourselves on keeping your sign installation on-time, on-budget, and compliant.
Proven Expertise Over four decades of combined experience delivering practical structural solutions tailored specifically for commercial signage projects.
Fast Turnaround Efficient workflows and responsive communication enable us to deliver stamped documents quickly without sacrificing accuracy.
Nationwide Coverage Licensed across nearly all U.S. states and select Canadian provinces for consistent, compliant engineering support.
Sign Engineering Projects We Can Handle
Channel Letters
Channel letter installations often involve a mix of surfaces, mounting styles, and design quirks. We look closely at weight, attachment points, and the structure behind the façade so the drawing reflects conditions the installers will actually face. This attention helps sign shops move ahead without surprises during fabrication or mounting.
Wall Signs
Wall signs vary widely, from shallow cabinets to oversized structures with internal framing. Our team studies wall makeup, anchorage spacing, and height conditions so your drawings match the realities of the job site. These details help keep your plans on the right track as the project approaches its review stage.
Pylon Signs
Pylon structures create their own engineering challenges. Soil conditions, pole sizing, footing style, and cabinet width all matter. We analyze these elements and translate the findings into drawings that support fabrication and permitting. This helps large and small sign companies avoid roadblocks once the city begin
Monument Signs
Monument signs have a distinctive mix of architectural finishes and internal framing. Our engineers map out the steel configuration, base connections, and cabinet structure so the finished drawing matches the installer’s workflow. Whether your team plans a direct-burial design or a base-plate layout, we prepare documents that move the project forward.
Blade Signs
Blade signs interact heavily with wind forces and wall structure. We look at the outrigger, mounting plate, and the portion of the building receiving the load. This lets us produce drawings that give installers a clear picture of how the sign should be supported, which helps with both safety and long-term performance
Awnings
Awning projects often combine fabric tension with metal framing and custom attachment points. We evaluate those elements and prepare engineering that supports both the appearance of the awning and its structural needs. These drawings are especially useful for restaurants and storefronts with limited installation windows.
Ready to Start Your Signage Engineering or Architectural Project?
From simple wall signs to complex national conversions, our engineers support every stage of your project with clear communication and dependable structural work. Reach out for a quote, and let our team help you move ahead with confidence.
Request a Quote Today
Single-Location Clients, Corporate Partners, Chains and More
Support for Local Sign Shops
Smaller sign companies often need dependable engineering they can hand straight to a reviewer without modification. We help them by keeping our communication open and giving them drawings that match the real conditions on-site. This makes their process smoother and lets their teams focus on fabrication and installation.
National Brand Rollouts and Multi-Site Programs
Large programs often involve repeated designs that still need to adapt to different wind speeds, soil conditions, and regional code expectations. We keep the core structure consistent while matching the local requirements for each address. Project managers appreciate having one engineering partner who can keep dozens of locations moving at a steady pace.
Engineering Partners for Design Studios and Fabricators
Many design groups and fabrication shops ask for our help when a concept needs structural clarity. We translate their ideas into drawings that work for permitting offices in many regions. This lets creative teams stay focused on design while still meeting project deadlines.
The Sign Engineering Process
Initial Project Review
We begin by studying your drawings, measurements, and site notes. This helps us understand how the sign will function once installed. When something needs clarification, we ask early, which keeps the project from drifting later and gives your team a clear direction from the start.
Structural Analysis and Draft Preparation
With the details in place, we begin the structural work. Our engineers evaluate loads, attachment points, framing concepts, footing size, and wall composition. We then prepare a draft that reflects these conditions and supports the next steps in permitting and fabrication.
Final Stamped Drawings Delivered
When everything is confirmed, we send the stamped drawings through email or mail. Clients appreciate the clarity of the documents and the consistency of our communication during the process. This final stage helps their teams move immediately into fabrication or the permitting queue.
