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Every detectable warning plates from NEI is built with lasting form and function in mind. Our regulatory-compliant cast iron detectable warning plates offer appealing aesthetics, exceptional longevity, and freedom from maintenance. Specifiers can rest assured that the critical warning message will be delivered for the product’s expected lifetime.


Reliable, Worry-free Performance 

  • Keep sight-impaired pedestrians safe by avoiding damaged or broken plates that create tripping hazards.
  • Cast iron does not deteriorated or crack, and will always remain within ADA guidelines.
  • Our detectable warning plates maintain a uniform shape with no change to any features.
  • Cast iron detectable warning plates offer distinct advantages over polymer plates.

We will customize detectable warning plates to meet your unique requirements. Qualified design professionals can use our detectable warning plates in their plans to meet current ADA and ABA guidelines. 

Our products are made in the United States and are approved for federally funded projects.

Detectable warning plates used at an outdoor plaza
Reduce Total Cost of Ownership 
  • Set it and forget its installation. There is no need for a costly and time-consuming replacement.
  • No maintenance is required on an unpainted cast iron detectable warning plate.
  • Problems associated with wearing, peeling, cracking, and delamination are eliminated.
Curved detectable warning plate at a rotary
Outstanding Durability
  • Enjoy craftsmanship that results in exceptional adherence to concrete and durability.
  • Our detectable warning plates offer a distinct durability advantage over plastic and steel alternatives.
  • Will outlive the life of the concrete, saving time and money.
  • No need to inventory extra products to ensure material is on hand for replacements.
  • The durability of cast iron even withstands snow plow abuse.
Pedestrians using detectable warning plates
Simple Installation - SET IT AND FORGET IT!
  • Quick connect feature enables end-users to fit two or more plates together quickly for installation.
  • No need for ancillary hardware.
  • Installation is quick and easy, saving time and money.
Close up of detectable warning plate on sidewalk with building in background
Aesthetic Appeal
  • It is recommended to be furnished and installed in its unpainted natural state for the best long-term, maintenance-free performance, and aesthetic appeal.
  • Unpainted plates will develop a permanent patina that remains the same throughout their lifetime.
  • Powder coat paint is available upon request in various colors, including federal yellow, black, and brick red.

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