ESC Trench Boxes Powers Ahead with New Salisbury Facility

2231 Old Wilkesboro Road, Salisbury, North Carolina

ESC Trench Boxes proudly announces the opening of its new manufacturing facility in Salisbury, North Carolina, marking a major milestone in the company’s U.S. growth strategy.

Salisbury, NC – ESC Trench Shoring Inc., now recognized across the United States as a leading provider of trench safety solutions, proudly announces the opening of its new Aluminum Manufacturing Facility in Salisbury, North Carolina. The fully operational facility marks a major milestone in the company’s ongoing growth and commitment to safety.

The new facility enhances ESC’s ability to deliver high-quality Aluminum Shoring systems faster and more efficiently, strengthening its position as a trusted partner for contractors and construction teams nationwide.

"Worker safety has always been at the heart of everything we do," said Bruce Colson, President at ESC Trench Shoring Inc. "This expansion allows us to better serve our customers while ensuring that every product we manufacture continues to meet the highest standards of safety and reliability.

ESC Trench Shoring offers a comprehensive range of solutions, including Steel Shoring, Aluminum Shoring, Stone Bedding Boxes, and other specialized equipment. Each product is engineered to meet strict compliance standards and designed to keep crews safe on the job site.

The Salisbury facility represents ESC’s ongoing investment in manufacturing excellence, customer service, and worker protection, reinforcing its mission to build safety, strength, and trust into every project.

With a focus on engineering excellence and customer satisfaction, ESC continues to expand its footprint and capabilities to meet the evolving safety needs of the construction sector.

ESC Trench Shoring Inc.: A Trusted Partner in Trench Safety

Manufacturing Excellence That Shows in Every Weld

When safety is non-negotiable, ESC Trench Shoring Inc. delivers. As a leading provider of engineered trench safety solutions across the U.S. and Canada, we design and manufacture trench shields and shoring systems that meet—and exceed—industry standards. Backed by technical expertise, responsive service, and a deep commitment to worker protection, ESC is the partner contractors rely on to keep every jobsite secure, compliant, and productive.

ESC operates advanced manufacturing facilities in the United States and Abu Dhabi, producing trench shields that meet both OSHA and international standards. Every shield is fully welded—no stitch welds or shortcuts—and certified by third-party engineers following NAXSA guidelines.

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www.esctrenchshoring.com

Their commitment to quality isn’t just about compliance—it’s about confidence. Contractors know that when they choose ESC, they’re choosing trench boxes that perform under pressure, project after project.

Trench box being lowered into trench to ensure worker safety and maintain timeline efficiency

A Product Range That Works Where You Do

ESC’s trench shoring solutions are designed to adapt—not just to soil conditions, but to the pace and complexity of modern excavation. Their lineup includes:

• TSB Steel Trench Shields – Heavy-duty panels available in multiple heights and thicknesses, built for deep and demanding digs

• TSU Utility Trench Boxes – Ideal for utility installations with compact dimensions and reinforced edges

• Manhole Shields – Engineered for wider excavations and vertical access points

• Aluminum Trench Boxes – Lightweight, high-strength options for urban repairs and tight-access jobs

• Modular Spreaders & Bedding Boxes – Designed for flexibility, speed, and minimal crew fatigue

Whether you're trenching 4 feet or 40, ESC has a shield that fits—and a team that backs it.

Featured ESC Trench Safety Projects

1. Manhole Trench Shield Deployment – Pipeline Expansion Project (U.S.)

ESC developed and deployed custom Manhole Trench Shields to support a large-scale pipeline network expansion. These shields provided wider shoring sections to accommodate manholes and basins, allowing crews to transition seamlessly between narrow trenches and larger pits. Impact: Reduced repositioning time, improved crew safety, and kept the project on schedule despite complex trench geometries

2. Heavy-Duty Trench Shield Rollout – Abu Dhabi Infrastructure Upgrade

In 2016, ESC launched its proprietary Heavy-Duty Trench Shields designed to meet EN 13331-1 & 2 standards. These shields underwent full-scale destructive testing and advanced finite element modeling before being deployed across infrastructure upgrades in Abu Dhabi.

Impact: Delivered high-pressure resistance and modular flexibility, enabling contractors to meet compressed timelines under strict regulatory oversight.

3. ABX Aluminum Trench Shield – Urban Utility Repairs (Mexico & U.S. West Coast)

   ESC’s lightweight ABX Series Aluminum Shields, fabricated from aircraft-grade 6061-T6 alloy, were used for routine maintenance and emergency utility repairs in tight urban zones. Their low weight made them ideal for use with mini-excavators and rubber-tired backhoes.

   Impact: Enabled rapid deployment in congested areas, reduced machinery costs, and minimized disruption to surrounding infrastructure.

Real-World Impact: How ESC Helped a Contractor Stay Ahead of Schedule and Under Budget

How do trench boxes speed up project timelines?

1. Reduce setup and dismantling time

    ESC’s modular trench shields are designed for quick assembly and disassembly. Contractors spend less time rigging and more time actually working in the trench.

   
   

2. Minimize unexpected delays

    By preventing trench cave-ins and soil movement, trench boxes drastically reduce work stoppages caused by unsafe conditions or emergency repairs.

   
   

3. Allow simultaneous work phases

    Trench protection allows crews to work inside trenches confidently, enabling concurrent operations like pipe laying and inspections, which accelerate overall schedules.

   
   

4. Streamline regulatory inspections

    Proper trench shielding helps projects pass OSHA inspections seamlessly, avoiding hold-ups related to compliance issues.

What budget benefits do trench boxes provide?

1. Lower risk of costly accidents

    Preventing trench collapses protects workers and avoids expense spikes from injuries, lawsuits, and equipment damage.

   
   

2. Reduce rework and soil restoration costs

    Stabilizing trenches maintains soil integrity, limiting the need for expensive excavation fixes caused by shifting or collapsed walls.

   
   

3. Enhance equipment utilization

    Fast and safe trench access minimizes idle machine time, supporting better rental and labor cost efficiency.

   
   

4. Extend product life and cut replacement frequency

    ESC’s durable steel trench shields are engineered for repeated use across projects, offering a compelling return on investment over disposable shoring options.

Choosing the Right Trench Box for Your Jobsite

Precision-engineered aluminum trench box designed for rapid deployment and corrosion resistance

Quick guide: How to pick a trench box that fits your jobsite needs

1. Understand your soil conditions

Soft clay, sandy soil, or rocky earth? Different soils place varying pressure on supports. ESC recommends having a qualified engineer assess soil type to match the trench box’s strength and design with those forces.

2. Match trench depth to shield capacity

Trench boxes come rated for specific excavation depths. ESC trench shields cover typical depths up to 40 feet, with options tailored for mid-range or deeper trenches. Never exceed the recommended depth — doing so compromises both safety and system performance.

3. Consider your crew size and workflow

The trench box size affects workspace inside the trench. Bigger crews or jobs with multiple simultaneous tasks may need wider or adjustable shields to improve movement and efficiency.

4. Decide between steel or aluminum types

Steel trench boxes offer unmatched durability and weight-bearing strength. Aluminum models excel at being lightweight and easier to transport, ideal for tight or mobile jobsites. ESC offers both, ensuring the right fit for your project parameters.

Trench box close-up: combining safety, speed, and cost-efficiency in confined space excavation

ESC’s personalized consultation and custom solutions

No two jobs are alike, and off-the-shelf options don’t always cut it. That’s why ESC provides expert consultation to evaluate your project details, soil reports, and safety regulations. Our engineers work with you to customize trench shield dimensions, materials, and accessories for maximum efficiency and protection.

Whether you need standard boxes or specialized manhole shields, ESC combines proven designs with custom tweaks to fit your site like a glove. On-site support and assembly guidance further simplify your workflow.

Conclusion 

At ESC, innovation and safety go hand in hand. Our trench shields are crafted with precision and backed by rigorous testing, but more importantly, designed with the people who rely on them most in mind. Every step we take is centered on helping clients achieve success through smarter solutions, expert guidance, and a genuine partnership approach.

When your excavation demands the best blend of performance and protection, ESC is here to help. Reach out today to explore our trench box offerings, discuss your unique site needs, or get advice from specialists who understand the complexities beneath the surface. Together, we’ll build not just safer trenches, but stronger projects.

Let’s make your next excavation safer, faster, and more cost-effective. Contact ESC Trench Shoring Inc. today for expert guidance and a custom quote tailored to your project needs.

What is an OSHA Compliant Trench Shield System?

Shield or sometimes referred to as “trench box” or “trench shield” prevents workers from being trapped inside a trench or excavation in event of cave-ins. They also protect workers from any material falling apart from excavation faces and from possible collapse of adjacent structures. Shield is recommended by the Occupational Safety and Health Administration (OSHA) as a Trench and Excavation Protective System besides Sloping/Benching and Shoring Solutions. Trench Boxes, from OSHA’s stand point, are characterized as follows.

DESIGN & MANUFACTURE

According to OSHA Standard 1926.650, shields can be either pre-manufactured or job-built in accordance with 1926.652(c)(3) or (c)(4).

(C) (3)-Designs using other tabulated data. Tabulated Data are tables and charts approved by a registered professional engineer and used to design and construct a protective system.

(C) (4)-Design by a Registered Professional Engineer (RPE). Designs shall be in written form and shall include: A plan indicating the sizes, types, and configurations of the materials to be used in the protective system; and the identity of the RPE approving the design.

MATERIALS AND EQUIPMENT

Under OSHA Standard 1926.652(d), materials and equipment used shall be free from damage or defects that might impair their proper function. They shall be used and maintained consistently with manufacturer recommendations, and in a way that will prevent employee exposure to hazards. When damaged, a competent person shall examine the material or equipment and evaluate its suitability for continued use. If the competent person cannot assure its ability to support the intended loads or is otherwise unsafe to use, such material or equipment shall be removed from service. It will be evaluated and approved by a registered professional engineer before being returned to service.

LIMITS OF APPLICATION

• Trenches 5 feet (1.52 m) deep or greater require a shield unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protection not required. (OSHA 1926.652(a)(1)(I & ii))

  
  

• Trenches 20 feet (6.1 meters) deep or greater require that the shield is designed by an RPE or be based on tabulated data prepared and/or approved by an RPE in accordance with 1926.652(c)..

  
  

• A trench box can be combined with other protective systems, such as sloping and benching. In this scenario, the trench box must extend 18 inches above the vertical part of the excavation walls. If the top of the trench box is at ground level, trench box does not have to extend above grade.

Photo Credit: OSHA Technical Manual Section V: Chapter 2

INSTALLATION AND RETRIEVAL

Conditions provided in OSHA 1926.652(g) are summarized as below:

• Shield systems shall not be subjected to loads exceeding those which the system was designed to withstand.

• Shields shall be installed in a manner to restrict lateral or other hazardous movement of the shield in the event of the application of sudden lateral loads. The space between the excavation sides and the trench box should be minimized or backfilled in any circumstance.

• Employees shall be protected from the hazard of cave-ins when entering or exiting the areas protected by shields. A stairway, ladder, ramp or other safe means of egress shall be located in trench excavations that are 4 feet (1.22 m) or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees.

• Employees shall not be allowed in shields when shields are being installed, removed, or moved vertically.

• The maximum distance between the bottom of the shield and the bottom of the trench should be 2 feet (0.61m). Excavation of not more than 2 feet below the bottom of a shield is allowed, only if the shield is designed to resist the forces calculated for the full depth of the trench. Also only if there are no indications of loss of soil from behind or below the bottom of the shield.

• To facilitate proper stacking in deep excavations, a design or system should be used to prevent the boxes from being misplaced or misused in the excavation when boxes of different ratings are employed. Boxes can be designed in a manner that they will fit together only one correct way, or using a marking system that readily identifies the maximum depth each individual box can be placed. Photo Credit: OSHA Technical Manual Section V: Chapter 2

ESC Trench Shield

In need of Professional Assistance for your Excavation and Trenching Projects? Contact ESC Trench Shoring Inc., please visit us at: www.esctrenchshoring.com email: info@esctrenchshoring.com Call us: North Carolina: +1 (704) 654 0321 / +1 (980) 689 4389 Houston, Texas: +1 (832) 800-1522