Professional Shop Drawing Review & Stamping Services

YJ Sign Inc provides expert review and stamping services for shop drawings across North America. Our licensed professional engineers examine your fabrication drawings for structural adequacy, code compliance, and constructability, then provide the engineer's stamp required for building permits. With over 20 years of specialized experience in signage and commercial structures, we understand exactly what building departments need to see in stamped shop drawings. Our typical turnaround is three days, keeping your projects on schedule.

Why Shop Drawings Need Professional Engineering Review

Shop drawings translate design concepts into fabrication-ready documents that show exactly how a sign, canopy, or structure will be built. While fabricators excel at creating detailed shop drawings, building departments require a licensed professional engineer to review these drawings and confirm they meet structural and safety requirements. Without an engineer's stamp, you cannot obtain the building permit needed to proceed with installation.

The review process involves more than simply stamping existing drawings. Our engineers carefully analyze structural members, connections, materials, and installation methods to verify they can safely support all anticipated loads. We check calculations, review attachment details, ensure code compliance, and identify any potential issues before they become problems in the field. This thorough review protects everyone involved in the project.

Our Shop Drawing Review Process

Initial Drawing Submission

When you submit shop drawings to YJ Sign Inc, our team immediately reviews them for completeness. We check whether the drawings include all necessary views, dimensions, material specifications, and structural details required for proper engineering analysis. If we identify missing information, we contact you promptly to request what we need, preventing delays in the review process.

Structural Analysis and Verification

Our licensed engineers then perform comprehensive structural analysis based on your shop drawings. We calculate loads including dead loads from the structure itself, wind loads based on project location and exposure, seismic forces where applicable, and any special loads from equipment, snow accumulation, or other sources. We verify that all structural members have adequate capacity, connections can transfer loads safely, and foundations can support the structure without excessive settlement or failure.

Code Compliance Review

Building codes vary by jurisdiction, and our nationwide licensing means we're familiar with requirements across different states and municipalities. We review your shop drawings against applicable building codes to ensure compliance with current structural standards, proper safety factors and design methods, appropriate materials and construction techniques, and all jurisdiction-specific requirements. If we identify code compliance issues, we work with you to develop acceptable solutions.

Stamping and Documentation

Once we confirm the shop drawings meet all structural and code requirements, we apply our professional engineer's stamp and signature. We also prepare supporting calculations that document our analysis and demonstrate compliance with engineering standards. These stamped drawings and calculations form a complete package ready for submission to building departments for permit approval.

Types of Shop Drawings We Review and Stamp

Sign Structure Shop Drawings

We review shop drawings for all types of signage including monument signs with masonry, steel, or aluminum structures, pylon signs with single or multiple poles, wall-mounted signs and channel letters, hanging and projecting blade signs, and rooftop signs and high-rise building signage. Our review covers both the sign cabinet or letter construction and the structural support system.

Canopy and Awning Drawings

Canopy and awning shop drawings require careful review of structural frames, covering materials, and attachment methods. We analyze gas station canopies and fuel pump covers, entrance canopies and walkway structures, fabric awnings and tension membrane systems, and architectural canopy features. We ensure the structural frame can resist wind uplift and lateral loads while properly supporting all mounted equipment.

Specialty Structure Drawings

Beyond signs and canopies, YJ Sign Inc reviews shop drawings for various specialty structures including temporary stages and festival installations, scoreboards and LED display structures, kiosks and ATM shrouds, flagpoles and decorative elements, and custom architectural features. Each application receives the same thorough structural analysis and attention to detail.

Benefits of Working With YJ Sign Inc

Industry-Specific Expertise

Many engineering firms occasionally review shop drawings as a secondary service. YJ Sign Inc specializes in shop drawing review for signs, canopies, and related structures. This specialization means we understand the unique aspects of these applications, speak the language of the sign industry, know what building departments expect to see, and can identify potential issues specific to signage installations. We bring over 20 years of focused experience to every project.

Fast, Reliable Service

Installation schedules depend on timely permit approvals, and permit approvals depend on receiving stamped drawings. We typically complete our review and stamping within three days of receiving complete shop drawings. For urgent projects, we offer rush services to prevent delays in your critical timeline. Our clients consistently praise our responsiveness and reliability.

Clear Communication

If we identify issues during our review, we don't simply reject the drawings. We explain the specific concerns, discuss potential solutions, and work collaboratively to resolve problems efficiently. This approach minimizes revisions and helps you understand the engineering reasoning behind any required changes. We're available by phone and email throughout the review process.

Licensed Throughout North America

YJ Sign Inc holds professional engineering licenses in 49 U.S. states (all except Alaska) and several Canadian provinces including Manitoba, Ontario, Alberta, and Saskatchewan. This extensive licensing allows us to stamp shop drawings for projects anywhere in our service area without requiring coordination with multiple engineering firms.

For national sign companies, franchises, and businesses with multiple locations, our broad licensing is particularly valuable. We can provide consistent engineering review standards across all your projects while ensuring compliance with varying local codes and requirements. Whether your project is in California, New York, Texas, Florida, or dozens of other jurisdictions, we have the credentials to stamp your shop drawings.

Working With Fabricators and Installers

We understand that shop drawings represent significant time and effort by fabrication teams. Our review process respects that work while ensuring structural adequacy and code compliance. We look for practical solutions that preserve design intent whenever possible, provide clear markup and comments when revisions are needed, and remain flexible in working with different drawing formats and standards.

For installers and contractors, our stamped drawings provide the documentation you need to proceed confidently with permitting and installation. We're also available to address questions from building officials during plan review or to provide additional calculations if requested by the jurisdiction. Minor revisions before final stamping are included at no additional cost.

What We Need For Shop Drawing Review

To provide efficient review and stamping, we need shop drawings that include complete structural details and dimensions, material specifications for all components, connection details and fastener information, installation methods and attachment points, project location for load determination, and any applicable building code references. The more complete the initial submission, the faster we can complete our review.

We accept shop drawings in various digital formats including PDF, DWG, and DXF files. If you have questions about what to include in your submission, our team is happy to discuss your specific project and provide guidance on preparing drawings for review.

Get Your Shop Drawings Reviewed and Stamped

YJ Sign Inc is ready to provide the professional engineering review and stamping your shop drawings require. Our specialized expertise in signage and commercial structures, combined with nationwide licensing and fast turnaround times, makes us the ideal engineering partner for sign companies, fabricators, and contractors throughout North America.

Contact us today to discuss your shop drawing review needs. We'll provide a clear quote, confirm our timeline, and answer any questions about the review process. Let our two decades of experience and commitment to quality service support your next project from drawing review through successful installation.