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Truncated Domes ADA Access Tile - 2' x 5' Mat - Surface Mount



Truncated Domes are a commonly used underfoot detectable warning surface to alert visually impaired pedestrians of their proximity to potentially hazardous walking transitions. When using a White Cane the person has both an audible and tactile sense of the obstacles around. Variable surface ADA tiles are commonly placed in and near:

  • Sidewalk curb ramps
  • Crosswalks
  • Parking areas
  • Top of stair landings
  • Transit platform edge dropoffs
  • Wheelchair ramps
  • Escalator approaches

All of Access Tile Truncated Domes are certified ADA compliant.

The Surface Mount tiles can be installed at any time and do not need to be placed in wet-set concrete. These units are considered a "Retrofit" on existing pathways.  Installation requires drilling of anchors and application of Tactile Seal & Bond adhesive on the entire back along with an ~1/4" bead around edges of each tile.

*One Tube of Adhesive is included per tile, however, this is typically used up when bonding the tile to the ground substrate, and additional Tactile Bond & Seal are typically required for sealing of the tile perimeter.

RULE OF THUMB: ~1 additional tube consumed for every two 2'x4' size tiles.

For details on product availability and bulk pricing call us:

(800) 604-5337

Minimum Order = 5 Tiles


  • Model: ACC-S-2460
  • Size: 2' X 5' per tile
  • Free Shipping
  • Need a written quote?
        Request Online
  • Volume Pricing Available on Large Orders
  • Questions?
    Call (800) 604-5537


  • Tile geometry allows for consistent dome spacing between adjoining tiles.
  • High density, diamond grip™ pyramid micro texture designed for exceptional slip resistance in wet and dry conditions.
  • Tamper-proof, countersunk, stainless-steel Axius® fastener set flush with truncated dome surface
  • Audible detectability technology engineered for sound amplification.
  • Textured surface to allow optimum adhesive bond.
  • Maximized strength load transfer design, bosses, located directly under domes transfer loads directly to substrate.
  • Adhesive location identified on the reverse side of tile for easy error-free installation.
  • Tiles are Slip resistant, corrosion resistant, and abrasion resistant

Full Installation Guide


Technical Spec Sheet


Submittal Package



Yellow and other bright colors like orange and red reflect light making them easier for the eye to see even with severe visual impairment.  This is why most of the ADA products sold are typically bright colors such as:

Federal Yellow -YW.

The following color options are also available for the Surface Attached Tiles. Call us if you cannot find the color you're looking for.

Ochre Yellow - OCR
Brick Red - RD
Colonial Red - COL
Ocean Blue - BL
Bright White - WH
Light Gray - LG
Dark Gray - DG
Onyx Black - BK


Full step by step installation and maintenance guides for our Cast In Place and Surface Mount Access Tiles can be found on our Installation and Maintenance Page.

Adhesion location identified on the reverse side of the tile for easy, error-free installation

Installation Instructions for Access Tile's ADA Compliant Tiles - FULL GUIDE HERE


  • All items ship for free (standard ground, see map)
  • Call: (800) 604-5537 for pricing and shipping questions.

Shipping estimates shown on the map pertain to this specific product only. Orders typically om 3-4 business days if the order is placed before 12:00pm noon EST. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.


Questions about our Access Tile products?  Visit our FAQ section here.

Access Tile Truncated Domes  

Truncated domes are standardized surfaces that are built in or applied to a walking area to warn pedestrians of possible hazards on a circulation path. Truncated domes are mats with raised three-dimensional bumps to alert someone who is visually impaired that they are about to walk into a parking lot and must be aware of dangerous vehicle traffic up ahead.

Truncated domes are often a yellow set of raised bumps on a pathway or platform. These domes will alert those who are visually impaired of changes in the surface or possible hazards up ahead.

Biggest Mistakes When Using Truncated Domes

Picture courtesy of

4 Mistakes To Avoid With Access Tile & Detectable Warning Tiles

Today, detectable warning surfaces are used all over the world to help with public safety and accessibility, targeted for those with visual impairments. Truncated offer a non-visual warning of upcoming possible hazards, allowing the visually impaired to navigate public areas safely and not aided. To ensure positive experiences, detectable warning surfaces are under very stringent rules and regulations which has been clearly outlined in the American's with Disabilities Act (ADA).

Unless caution is shown, serious mistakes can lead to dangerous installations of detectable warning surfaces. Avoiding these mistakes will keep the public safe should be the number one concern by everyone.

1. Swapping Wayfinding Bars & Truncated Domes

Truncated domes and wayfinding bars are very important parts for non-visual paths with markers and each plays a a different role. In general, wayfinding bars signify the beginning of a path that should be followed and used to guide the visually impaired through large open spaces. Truncated domes are meant to be placed at the beginning and end of a pathway, signifying the end of the path and a potential hazard along the way.

While both Access Tile truncated domes and directional wayfinding bars are both detectable warning surfaces, they are created to work together and each has its own important role to play.

2. Not Installing Where Access Tile Domes Are Required

ADA detectable warning surfaces are mandatory in several public areas. Most of these domes are seen along transit platforms and pedestrian crosswalks.

Failure to install ADA tiles or domes in the proper locations or installing them in the wrong places can be dangerous to visually impaired pedestrians. ADA tiles on stair landings will tell the visually impaired the beginning and end of stairways and offer a non-visual path marking signal. Adding more detectable warning plates on medians can be dangerous because the signal could tell someone who is visually impaired they have reached the other side of a pedestrian crosswalk. You must stay within the guidelines.

Following the local and federal building codes will ensure detectable warning tiles are installed in the right places to best serve the visually impaired.

3. Placing ADA Pad Improperly - Tripping Hazard

Detectable warning domes or surfaces are created to help the safety and speed of pedestrian foot traffic but if installed improperly or not under the set coding, truncated domes can interfere with the flow of foot traffic and can become dangerous.

Truncated domes that protrude too high from the ground can cause visually impaired people to trip over them and if placed too close together can make it very difficult for wheelchairs, strollers, or other mobile devices to travel over the surface. Also, short truncated domes do not offer a significant tactile warning. The ADA has strict rules regarding the size and spacing of truncated domes to allow for the safe passage of people over detectable warning surfaces. Also, improper installation of detectable warning surfaces can lead to issues from tripping as well as causing tile damage.

red truncated domes mat on concrete peeling up

photo courtesy of

4. Installing Too Little Or Too Many Detectable Warning Tiles

Detectable warning surfaces must offer enough notice of approaching hazards to allow the visually impaired to move forward with caution and act in accordance. If there are too few detectable domes they cannot offer enough warning and could lead to s serious accident. As an example, a narrow strip of truncated domes along the edge of a train platform might not be enough to warn someone of a dangerous drop-off from the platform and could cause them to fall onto the tracks. Too few, will not provide the needed warning and can lead to serious harm.

The Americans with Disabilities Act (ADA) requires truncated dome tiles be extended at least 610mm in the direction of travel and along the entire length of the curb ramp, stair landing, or a transit platform to provide sufficient warning.

Too many ADA tiles can cause significant safety concerns. If the detectable warning surface is too large, it can confuse the direction the pedestrian should take. Also, too many truncated dome tiles can make navigating a given area very difficult for walkers, wheelchairs, strollers, and other mobile devices.

Access Tile Truncated Domes Color Chart

Access Tile Color Chart

Access Tile Offered In The Color To Match Your Project

Access Tile offers an array of various colors to match the project requirements. The most popular color for street sidewalk ada applications is the Federal Yellow color. The bright yellow color can stand out to both vehicles driving by and in some cases can be seen by those who are visually impaired, but their vision isn't full gone yet. The yellow tiles are also commonly found on transit platforms like trains or monorails. 

The next most popular colors are Onyx Black and the various Red colors. Access Tile offers three red colors; Colonial Red, and Brick Red. These colors are seen in front of shopping stores such as Walmart, Publix, Dollar Stores, and Pottery Barn among many others. 

The next most popular colors are Onyx Black and the various Red colors. Access Tile offers three red colors; Colonial Red, and Brick Red.  

How Do Detectable Warning Surfaces Work?

Sep 01, 2021 Ryan Matheson

Detectable warning surfaces help people with visual impairment to know where pedestrian transitions are. They are required by the ADA Americans with Disabilities Act and are placed near intersections and on transit platforms to alert passersby. These ground mats have noticeable contrasting colors and raised domes for multi-sensory feedback.


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