A truncated dome panel costs $80 to $580 per panel in 2026, depending on size, material, and whether the panel is replaceable cast iron, polymer concrete, precast concrete, or composite plastic. Per-square-foot the spread runs $26 to $98 for material alone. Panel cost is one component of installed cost, so this guide isolates the panel-only line so a buyer can compare apples to apples across product families.
Per-panel pricing matters most when an architect is specifying a multi-curb-cut project, when a property manager is replacing a single damaged panel, or when a procurement team is comparing bids. Each scenario reads the cost differently.
Why Per-Panel Cost Differs From Per-Square-Foot
Per-square-foot pricing assumes a uniform install across a continuous surface. Per-panel pricing isolates the unit cost of a single discrete product, which matters when:
- The curb cut requires a specific panel size (24 inches by 36 inches vs. 36 inches by 60 inches)
- The owner is replacing a single damaged panel within an existing system
- The architect is specifying panel count by elevation rather than total square footage
- The procurement team is benchmarking bids that quote panels rather than coverage area
A 24-inch by 36-inch panel covers 6 square feet. A 36-inch by 60-inch panel covers 15 square feet. Same per-square-foot material rate yields very different per-panel prices.
Truncated Dome Panel Cost by Material
Industry Baseline Range
| Panel material | 24" x 24" panel (4 sq ft) | 24" x 36" panel (6 sq ft) | 36" x 60" panel (15 sq ft) | Per sq ft |
|---|---|---|---|---|
| Composite plastic (FRP) | $104 to $192 | $156 to $288 | $390 to $720 | $26 to $48 |
| Polymer concrete | $128 to $232 | $192 to $348 | $480 to $870 | $32 to $58 |
| Precast concrete | $160 to $280 | $240 to $420 | $600 to $1,050 | $40 to $70 |
| Cast iron (replaceable plate) | $232 to $392 | $348 to $588 | $870 to $1,470 | $58 to $98 |
Current Market Reality
Cast iron and polymer concrete climbed 12 to 24 percent on raw inputs in 2025. Precast concrete tracked portland-cement inflation at 8 to 12 percent. Composite was the smallest 2025 increase but is exposed to UV-stabilizer additive supply tightening in 2026. Stainless-steel anchors and ASTM C881 epoxy adhesives have climbed 10 to 14 percent year-over-year. Manufacturer freight has roughly doubled on small-quantity orders since 2022; consolidating into a single shipment per project saves meaningful dollars.
Cost Drivers Specific to Panel Selection
Panel cost varies inside the published range based on five spec lines.
Color choice
Federal yellow (RAL 1023) is the lowest-cost color across all material families because it is the most-stocked. Brick red, terra cotta, and federal blue carry premiums of 8 to 18 percent. Custom colors carry 25 percent plus and require special-order lead times.
Edge profile
Cast-in-place panels with embed flanges cost more than surface-applied panels with flat edges. The flange profile adds 10 to 18 percent over a base panel of the same size and material.
ASTM and AASHTO certifications
AASHTO M306 load-rated cast-iron panels carry a premium over uncertified cast iron. Polymer-concrete panels with published ASTM C1028 slip resistance and ASTM C501 abrasion test reports cost 6 to 12 percent more than panels without published test data.
Replaceable frame system vs. integral panel
A replaceable cast-iron system separates the cost of the permanent frame ($120 to $260 for a 24-inch by 24-inch frame) from the replaceable plate ($112 to $192 for the same size). Integral one-piece panels do not have this split.
Order quantity and freight
Single-panel orders pay full freight (often $80 to $180 in shipping). Five-panel orders carry $20 to $40 in freight per panel. Twenty-panel orders are typically free freight on FOB-destination terms.
Replacement-Panel Cost Math
When a single panel within an existing system needs replacement, the cost equation differs from new install.
Replaceable cast-iron plate replacement
The plate alone ranges $112 to $392 depending on size. Install labor runs 30 to 60 minutes for a two-person crew. No demolition, no substrate work. Total replacement cost typically $240 to $580 per panel including labor and trip charge.
Surface-applied panel replacement
The replacement panel ranges $156 to $720 depending on size and material. Removal of the failed panel takes 60 to 120 minutes with grinding, scraping, or cutting. Adhesive prep and reinstall add 90 to 180 minutes. Total replacement cost typically $620 to $1,800 per panel including labor and trip charge.
Cast-in-place panel replacement
The replacement panel ranges $128 to $1,470 depending on size and material. Removal requires saw-cutting and demolishing surrounding concrete (4 to 8 hours of crew time plus disposal). Re-pour and panel set add another half-day. Total replacement cost typically $1,800 to $4,800 per panel.
The replaceable cast-iron premium pays for itself the first time a single panel needs replacement. That is why public-bid projects with ongoing maintenance budgets often spec replaceable systems even when initial cost is higher.
Procurement Tips
Three buying strategies cut panel cost without compromising ADA 705 compliance.
Order panels in container quantity
Twenty-panel orders typically clear the freight threshold. Property portfolios with multiple compliance projects can pool orders across sites for the same material specification.
Stock spare plates of a replaceable system
Property owners with replaceable cast-iron systems should keep 2 to 4 spare plates on site. Spare plates avoid the trip charge and lead time when a single plate fails. Plate-only orders ship faster than full-system orders.
Pre-spec the color across the property
Standardizing on a single dome color (federal yellow on dark concrete is the most common compliant choice) lets the owner pool replacement orders and lock in the lower-cost color across the entire portfolio.
Compliance Disclaimer
This article reflects ADA Standards for Accessible Design as of 2026-05-07 and product spec sheets current at publication. Always verify current dimensions, contrast thresholds, and placement requirements with your local jurisdiction and the U.S. Access Board before issuing a final spec. Federal guidance under 36 CFR Part 1191 controls when state or local rules conflict. Lower-cost panel selection alone does not satisfy ADA compliance — installation geometry and 705.2 contrast verification at install are equally controlling.
Sources
- ADA Standards for Accessible Design, Section 705 Detectable Warnings, U.S. Access Board, https://www.access-board.gov/ada/
- 36 CFR Part 1191 Appendix D, Detectable Warnings, https://www.ecfr.gov/current/title-36/chapter-XI/part-1191
- FHWA Accessibility Resource Library, https://highways.dot.gov/civil-rights/programs/ada/accessibility-resource-library
- Oregon Department of Transportation, ADA Curb Ramp Design Guide, https://www.oregon.gov/odot/engineering/pages/ada.aspx
From Cojo's Crew
In February 2026 we replaced 4 cast-iron plates at a Salem state-government parking lot. The plates had reached year-19 wear and the property's procurement team had stocked spare plates from the original 2007 install. The replacement labor was 35 minutes per plate, no surface work, no adhesive cure time. Total replacement cost on the 4 plates landed at roughly $920 including the trip charge. The same property a year earlier replaced 6 surface-applied composite panels and the per-panel cost was 4 times higher because every removal required grinding and adhesive prep.