Attenuator fabricated to truck

Custom Installation & Fabrication Services

We provide installation of truck-mounted arrow and message boards including stock bed and frame racks as well as custom fabrication if needed. Our fabrication capabilities are backed by years of experience, unmatched quality, and a commitment to customer satisfaction in the final product. Our truck-mounted arrow boards and message boards are important for road safety, especially for fleets & trucks involved in construction, maintenance, or any roadside work.

Custom Fabrication for a Variety of Products
Example of the work NatCap can do for your work truck

Bring in your own equipment (estimate required) or purchase from our extensive inventory of quality materials and we’ll get the job done! We offer arrow boards, attenuators, and the best message boards on the market from manufacturers you can trust like Wanco and Trafcon. We fabricate quality truck equipment for your specialty vehicle with stainless steel and durability in mind.

Aside from our standard truck-mounted equipment, we also provide and fabricate construction zone lighting, essential DOT products, wheel chalks, fire extinguishers, 1st aid kits, road flares, and any other high-quality parts you might want to add to your custom project.

We can install these boards on anything that rolls and has power, traditionally powered or electric vehicles. Our custom work includes frame modification and can be applied to a wide range of parts and vehicles including:


     Commercial vehicles


     Work trucks

     Flat beds

     Rear bumper

     Utility boxes

     Heavy equipment


Our custom truck fabrication services are the top choice for businesses, construction companies, independent contractors, emergency service workers, DOT agencies, and freight companies when it comes to providing the custom specifications they require.

Who We Serve
White truck with custom fabrication work done by NatCap
Fabrication Pricing
White truck with custom fabrication attached to back

Pricing is presented in a quote for raw materials with hours of labor. We currently sell our technicians’ services for $122.50 per hour. This does not include welding or any custom metal fabrication, this would be quoted in addition to parts and labor if required.

We are a one-stop shop and are flexible to your specific needs. Please contact our experts with any inquiries regarding pricing, repair services, custom parts, challenging projects, or scheduling.

Client Testimonials

NatCap always has what I need, the right spec. in stock with so many different products. From temp tape to lutes to No Parking signs and the certs to comply w the project requirements.

Kevin Barlow, Estimator @ General Paving

Excellent customer service and Bobbie is a great sales rep. Everything is smooth and seamless when dealing with him & Nat Cap.

Justin Gollick, Project Manager @ D & F Construction

Having a sales rep that is knowledgeable and ready to help me accomplish my companies goals is why I do business with National Capital.

JP, Project Manager @ AllSite
Our Custom Solutions
Safety Equipment Supplier

How will you keep your crew safe on the job site? From PPE such as safety vests and hardhats to larger equipment to improve crew safety, we’ve got it.

Professional Contractor Supply

Why bother checking so many supply houses to find what you need when we’ve got it? We have a reputation for stocking all the best construction supplies in our convenient locations.

Pavement Marking Supplies

As a new offering, we now offer pavement marking supplies, making us the only place in the United States where you’ll need to stop to find everything for your project.

Traffic Safety Signs

Our streamlined process allows us to keep up with the high demand for traffic safety signs and tools, making it easier for you to get what you need and get on with your project.

Our Clients
Traffic Engineering Services Logo
Maryland DOT Logo
City of Baltimore Logo

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About our custom fabrication shop skilled craftsmen and technicians:

Daniel – Senior Technician

Zach – Technician

SamContract Welder & Metal Fabricator


2801 West Patapsco Ave.

Suite A

Baltimore, MD 21230

Contact Us
Store Hours

Monday – Friday

7:00 AM – 4:00 PM