R-4985-20R Detectable Warning Plates
Cast-iron tactile plate with 20R radial edge for curved surfaces. CSA B651-12 and ASTM 1028 compliant with slip-resistant domes—durable and fully recyclable.
$152.00 USD
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In stock
| Qty | USD$ |
|---|---|
| 1 | 152 |
| 2 | 109 |
| 3 | 94 |
| 4 | 86 |
| 5 - 9 | 81 |
| 10 - 24 | 72 |
| 25 - 49 | 64 |
| 50 - 99 | 62 |
| 100 + | Call for pricing |
- In Stock & Ready to Ship
- Maximum Delivery Time 14 Business Days
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5.0 If you require more resource materials, please contact our customer service department.
The R-4985-20R detectable warning plates are designed to facilitate inclusive public spaces by making high-traffic areas safer and more accessible for the visually impaired. Built to CSA B651-12 and ASTM 1028 standards, these cast-iron tactile plates effectively signal changes in level or a transition from sidewalk to street and prevent slipping with grid-textured surfaces and truncated domes.
Each plate measures 24.2″ deep by 18.9″ wide and features a 20R radial edge designed for curved applications. They are engineered to withstand being ran over by heavy vehicles. Additionally, the plates are fully recyclable at the end of their life cycle. This item comes uncoated by default, and over time will form a natural patina from oxidization and moisture, which will provide an effective visual contrast from the environment.
| Weight (lbs) |
45 |
|---|---|
| Function |
Detectable Warning Plate |
| Height (in) |
1.54 |
| Length (in) |
24.2 |
| Width (in) |
18.9 |
| Material |
Cast Iron ASTM A 48 Class 35B |
Durable Design
We create long-lasting infrastructure that reduces waste over time, by utilizing materials that are durable, recyclable, and that can be repurposed.
Conscious Manufacturing
We prioritize partnerships with manufacturers that share our values - those who use recycled materials and implement sustainable practices.
Giving Back To Nature
Buy A Bollard, Plant A Tree.
The heart of our sustainability initiative lies in giving back: we plant a tree for every bollard sold.
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In-stock items are delivered within 14 business days across North America.
Your cart shows a single, all-in shipping charge. Duty and brokerage are already included for U.S. customers, so there are no surprise fees.
Products arrive fully protected and include required mounting hardware plus an installation guide (see the Downloads tab for details).
Dimensions, PDFs, DWGs, and CSI specs live under the Downloads tab on every product page.
Most bollards and bike racks surface-mount or embed in concrete; follow the included guide or use any local contractor.
Pricing is displayed on the product page. We also offer volume discounts on quantities of 5 or more.

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