Detectable Warning Strip: Narrow Tactile Hazard Bands
What a detectable warning strip is and how it compares to full panels
A detectable warning strip is a narrow band of detectable warning surface, covered in truncated domes, used to mark a hazard where a full-depth panel is not the right fit. Detectable warning strips deliver the same tactile, audible, and visual warning as larger mats, in a strip format suited to certain edges and transitions.
What is a detectable warning strip?
A detectable warning strip is simply a detectable warning surface in a narrow format. It uses the same standardized truncated domes that make any detectable warning work, felt underfoot and under a cane, audible as feet and wheels cross, and visually contrasting, but in a band rather than a large square or rectangle. Detectable warning strips are chosen when the hazard is best marked by a line of warning.
How strips are used
- Edge marking: a strip can mark the edge of a hazard where a band of warning communicates the line not to cross.
- Transitions: strips suit certain transitions where a full panel is more than the situation calls for.
- Consistency: the dome pattern matches full panels, so the warning is recognized the same way.
Cast-in-place vs surface-mount
These products come in two mounting styles, and the right one depends on whether the concrete is new or existing:
- Cast-in-place: set into wet concrete during a new pour for a permanent, integral installation. Best for new construction and full ramp replacement.
- Surface-mount (surface-applied): installed onto existing cured concrete with anchors and a bond-and-seal adhesive. Best for retrofitting and bringing existing surfaces into compliance.
Strips vs full panels
Full detectable warning panels cover the required area at curb ramps and platform edges, while strips provide a narrower band of warning. The right choice depends on the hazard and the governing requirements for that location, some transitions call for full coverage, others can be marked with a strip. Always confirm what the applicable standard requires before specifying a strip in place of a full panel.
Where detectable warning strips are used
Detectable warning strips are used at edges and transitions where a band of tactile warning is appropriate and permitted, complementing the full panels used at curb ramps and platform edges.
Not sure which product fits your site? Use the Detectable Warning Mat Selector, our free interactive tool under the Resources menu, to answer a few plain-language questions and get matched to the right detectable warning mat type, mounting style, size, and color for your project.
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Shop Detectable Warning MatsUse the Mat SelectorFrequently Asked Questions
What is a detectable warning strip?
A detectable warning strip is a narrow band of detectable warning surface covered in truncated domes, used to mark a hazard where a full-depth panel is not the right fit. It provides the same tactile, audible, and visual warning in a strip format.
How is a detectable warning strip different from a full panel?
A full panel covers the required area at curb ramps and platform edges, while a strip provides a narrower band of warning. The choice depends on the hazard and the governing requirements for that location.
Where are detectable warning strips used?
They are used at edges and transitions where a band of tactile warning is appropriate and permitted, complementing the full panels used at curb ramps and transit platform edges.
Do detectable warning strips use the same domes?
Yes. Strips use the same standardized truncated dome pattern as full panels, so the warning is felt and recognized the same way, just in a narrower format.
Can a strip replace a full detectable warning panel?
Only where the applicable standard allows it. Some transitions require full coverage while others can be marked with a strip, so always confirm what the governing requirements call for before specifying a strip.