DURALAST® Detectable Warning Plates

 DURALAST® Detectable Warning Plates

Cast iron—the natural choice for ADA compliance

Lower your maintenance and product life cycle costs by using DURALAST Detectable Warnings—your AASHTO M 333-16, Americans with Disabilities Act Accessibility Guidelines (ADAAG) and Accessibility for Ontarians with Disabilities Act (AODA) compliant solution.


DURALAST® Detectable Warning Plates by EJ help warn blind or visually impaired pedestrians of the approaching street. Engineered to outlast the sidewalk, this long-lasting cast iron design withstands rigorous urban conditions, such as snow plows, street cleaning machines, and vehicular traffic.

Durable and Cost Effective - DURALAST plates are produced from extremely durable, corrosion-resistant cast iron. An independent lab found the wear index of DURALAST was more than 500 times that of composite warning plates. DURALAST plates are engineered to outlast the sidewalks in which they are permanently embedded; long-wearing plates yield cost savings over the life of the sidewalk. 

Resistant to the Elements - Cast iron’s inherent resistance to the elements, snow plows, and snow melting chemicals make it a natural fit for severe climates.

Made in the USA from Recycled Materials - With DURALAST, you are eligible to earn LEED® points in the Materials and Resources category. Cast iron is an environmentally responsible product that is completely recyclable after its useful life.

Americans with Disabilities Act (ADA) Compliant - The natural finish of the warning plates meets color contrast requirements. It features a slip resistant textured surface, and is DOT approved (contact your local Sales Representative for specification approvals). Bolting or interlocking feature ensures compliance during installation.

AASHTO M 333-16 Compliant - The natural finish meets color contrast requirements. The dome size and spacing, as well as the overall size of the detectable warning surfaces, meets minimum requirements.

Product Details

  • Multiple standard sizes (18" x 24", 24" x 24", 30" x 24")
  • Radial plates (10’, 15’, 17 1/2’, 20’, 25’, 30’, 35’)
  • Slip-resistant, textured surface (greater than 0.8 coefficient of friction) per ASTM C-1028
  • Wear index of 7,333
  • DOT-approved (contact your local sales representative for specification approvals)
  • Natural uncoated finish or black asphaltic dip
  • Choose from I-LOK® interlocking plate design or standard bolting to hold the plates together
  • Made in the USA

Product Testing

Maintenance free cast iron detectable warnings are designed to fully comply with the AASHTO M 333-16 and American Disabilities Act Accessibility Guidelines (ADAAG). Contact your local sales representative for other independent laboratory tests and research studies.


Slip Resistance 1.10 Dry / 1.06 Wet ASTM C-1028
Wear Resistance (Abrasion) 7333 ASTM C-501-84
Impact Resistance >238 Newtons ASTM D-1709
Adhesion to Concrete (Bond Strength) >5000 lbs ASTM D-482
Tensile Strength 35,000 PSI ASTM A-48
Design Compliance Fully Compliant AASHTO M 333-16 and ADAAG

Learn More

Talk to an expert at EJ to find out how the innovative solutions by EJ can work for your next project.  Contact us today or schedule a Lunch and Learn.

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