Steel Fabrication
Guard Rails: Heavy-Duty Steel Fabrication & Custom Manufacturing
Engineered for impact resistance and long-term durability, our custom-fabricated guard rails protect people, equipment, and infrastructure across highway, industrial, and commercial applications.
Custom Guard Rails Built for Real-World Impact
Guard rails are among the most critical safety barriers in transportation and industrial infrastructure. At C.L. Dews & Sons Foundry, we fabricate heavy-duty steel guard rails engineered to meet federal highway specifications, industrial safety codes, and site-specific requirements that off-the-shelf products simply cannot address.
Whether you need W-beam highway barriers, thrie-beam bridge rails, cable guard rail systems, or heavy industrial perimeter guard rails, our steel fabrication capabilities allow us to produce components to exact dimensional and metallurgical tolerances. Every guard rail system we manufacture undergoes rigorous quality control — from raw material verification through final galvanization or coating — so the finished product performs when it matters most.
With decades of foundry and fabrication experience, we understand that guard rails must absorb and redirect kinetic energy without catastrophic failure. That demands precise material selection, correct post spacing, proper beam gauge, and reliable connection hardware. We deliver all of it under one roof.
12ga
Standard W-Beam Thickness
6′3″
Typical Post Spacing
A36
ASTM Primary Steel Grade
Types of Guard Rails We Fabricate
Different environments demand different guard rail profiles. We manufacture the full range of beam, cable, and industrial barrier systems — each designed and fabricated to match the specific energy absorption and deflection requirements of your project.
W-Beam Guard Rails
The most widely deployed highway barrier in North America. W-beam guard rails use a corrugated steel profile that deforms on impact to absorb vehicle energy. We fabricate W-beam sections in standard 12.5-foot and 25-foot lengths using 12-gauge galvanized steel, with punched bolt slots conforming to FHWA guardrail standards.
Thrie-Beam Guard Rails
Thrie-beam profiles provide a taller contact surface and higher containment level than standard W-beam. Commonly specified for bridge approaches, median barriers, and elevated crash-risk locations. Our 10-gauge steel fabrication meets AASHTO MASH test level requirements.
Cable Guard Rail Systems
High-tension cable barriers offer excellent energy absorption with minimal vehicle damage in low-angle impacts. We fabricate the steel posts, anchor assemblies, and terminal hardware for cable guard rail installations on highway medians.
Industrial & Facility Guard Rails
Heavy-gauge steel bollard-and-rail systems, floor-mounted perimeter barriers, and custom rack-end protectors for manufacturing plants, warehouses, and processing facilities. Precision mounting hardware via our CNC machining shop.
Materials & Specifications
Material choice directly determines how a guard rail performs under impact, how long it resists corrosion, and how well it integrates with existing infrastructure. We work with proven steel grades and finishing processes backed by ASTM and AASHTO standards.
ASTM A36 Structural Steel
The standard for guard rail posts and beams. A36 provides a yield strength of 36 ksi with excellent weldability and formability for corrugated profiles.
Hot-Dip Galvanization
Per ASTM A123, our guard rails receive hot-dip galvanized zinc coating for 25+ year corrosion resistance in highway and coastal environments.
AASHTO M180 Compliance
W-beam and thrie-beam sections are fabricated to AASHTO M180 specifications, covering material grade, beam dimensions, corrugation depth, and bolt-hole patterns.
Precision CNC Fabrication
Post holes, mounting plates, and connection hardware are CNC-machined for exact alignment, eliminating field fit-up problems and reducing installation time.
Guard Rail Applications
Our guard rails are installed across a wide range of environments — anywhere vehicles, equipment, or personnel need separation from hazards. Each application has distinct requirements for containment level, post embedment, and deflection distance.
Highway & DOT Projects
Roadside barriers, median dividers, and bridge approach rails meeting NCHRP 350 and MASH test levels for state and federal highway contracts.
Industrial Facilities
Perimeter protection around machinery, electrical panels, and pedestrian zones inside manufacturing plants, refineries, and processing facilities.
Parking Structures
Vehicle barriers for parking garages, loading docks, and drive aisles where impact containment protects structural elements and pedestrians.
Commercial Properties
Storefront bollard-and-rail systems, property-line barriers, and utility protection guard rails for retail, office, and mixed-use developments.
Why Choose C.L. Dews & Sons Foundry
When your guard rails must meet federal specifications, withstand punishing conditions, and arrive on schedule, you need a fabrication partner with deep metallurgical knowledge and vertically integrated capabilities.
Full-Service
Fabrication
Casting, cutting, forming, welding, machining, and finishing — all performed in our own facility for complete quality control.
Spec-Driven Manufacturing
We fabricate to AASHTO, ASTM, and FHWA standards. If your project has custom specifications, we engineer to those as well.
Scalable Production
From a single prototype run to multi-mile highway contracts, our shop capacity and material sourcing handle projects of every scale.
Our team works directly with engineers, general contractors, and DOT procurement offices to ensure material certifications, dimensional reports, and delivery timelines align with project requirements. Every guard rail that leaves our facility carries full traceability documentation from raw steel through finished product.
Ready to Discuss Your Guard Rail Project?
Tell us about your specifications, quantities, and timeline. We will provide a detailed quote and material certification plan.
