CAST-IN-PLACE NOSINGS
STNC3-RB: 3'' RIBBED CAST-IN-PLACE STAIR NOSING
STNC3-RB: 3'' RIBBED CAST-IN-PLACE STAIR NOSING
The low-profile STNC3-RB 3.0” wide ribbed stair nosing is designed for low maintenance and architectural appeal. The profile includes a replaceable 1“ photoluminescent marking or sand-grit insert strip to meet slip-resistance and contrasting stripe requirements. The nosing includes a patented protective cover to prevent damage during installation and through construction. Suitable for both interior and exterior environments.
Designed for installation into wet concrete. Ideal for Cast-In-Place Stairs, Precast Treads and Pan Filled Stairs. Fits a metal pan bull-nose radius between 3/16” and 1/2”.
Constructed from durable aluminum. Its tapered front edge, slim 1/8” height and square back edge creates a flush transition from nose to tread. Multiple colors, finishes and options are available to match project aesthetics or meet specific code requirements.
Code Compliance:
- Compliant with: IBC, IFC, NFPA, ASTM, OSHA, ADA, and California Title 24 contrasting stripe requirements.
- UL Approved.
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OPTIONS
EXTRUDED ALUMINIUM
Finish Options
Clear Anodize
Standard
Yellow Powder Coat
Custom
Black Powder Coat
Custom
Mill Finish
Custom
1'' INSERT STRIP
Glow and Non-Glow Options
Photo-Glo® STNF
Premium Polymer Resin
Photo-Glo® S9203
Budget Acrylic Vinyl
Traction Yellow
Anti-Slip Tape
Traction Black
Anti-Slip Tape
INSTALL ATTACHMENT
Continuous extruded aluminum anchors into wet concrete.
CONSTRUCTION COVER
Included, shop installed. Tear off after concrete cures, near end of construction
* Custom options may require additional lead time.
MODELS
 |
PRODUCT | OPTION 1 | OPTION 2 | INSTALL | PROTECTION | SIZE |
|---|---|---|---|---|---|---|
| Product Image |
Model # | Extruded Aluminum | 1” Insert Strip | Attachment | Construction Cover | Max Length |
| Standard - Clear Anodize | ||||||
 |
STNC3-RB | Clear Anodize | Photo-Glo STNF | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RB9203 | Clear Anodize | Photo-Glo S9203 | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBTY | Clear Anodize | Traction Yellow | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBTB | Clear Anodize | Traction Black | Anchors into wet concrete. | Included | 12'-0" LF |
| Custom - Yellow Powder Coat | ||||||
 |
STNC3-RBY | Yellow Powder Coat | Photo-Glo STNF | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBY9203 | Yellow Powder Coat | Photo-Glo S9203 | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBYTY | Yellow Powder Coat | Traction Yellow | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBYTB | Yellow Powder Coat | Traction Black | Anchors into wet concrete. | Included | 12'-0" LF |
| Custom - Black Powder Coat | ||||||
|
STNC3-RBB | Black Powder Coat | Photo-Glo STNF | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBB9203 | Black Powder Coat | Photo-Glo S9203 | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBBTY | Black Powder Coat | Traction Yellow | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBBTB | Black Powder Coat | Traction Black | Anchors into wet concrete. | Included | 12'-0" LF |
| Custom - Mill Finish | ||||||
|
STNC3-RBMF | Mill Finish | Photo-Glo STNF | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBMF9203 | Mill Finish | Photo-Glo S9203 | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBMFTY | Mill Finish | Traction Yellow | Anchors into wet concrete. | Included | 12'-0" LF |
|
STNC3-RBMFTB | Mill Finish | Traction Black | Anchors into wet concrete. | Included | 12'-0" LF |
* Custom options may require additional lead time.
TECHNICAL INFORMATION
Application:
Interior or exterior use. Cast-In-Place Stairs, Precast Treads, Metal Pan Filled Stairs.
Transition:
Concrete shall be level to nosing during install for flush transition.
Code Required Placement:
- Leading edge of glow stripe shall be placed 1/2” max from leading edge of step.
- Glow or contrasting stripe must extend full width of step.
- Terminate nosing/stripe with 1/8“ max gap from each end of tread.
Max Length:
12’-0” Long
Supply:
Cut to specified length, fully assembled to selected options. Custom options may require additional lead time.
1″ Insert Strips:
Photo-Glo® STNF, Photo-Glo® S9203, Traction Yellow, Traction Black
Extruded Aluminum:
Alloy 6063-T5. Clear Anodized, Yellow Powder Coat, Black Powder Coat, Mill Finish
Install Attachment:
- Fits bull-nose radius from 3/16” to 1/2”.
- Continuous extruded aluminum anchors into concrete.
Protection Cover:
Included, shop installed. Tear off after concrete cures, near end of construction.
Warranty:
Up to 25 Years. Contact Safe-T-Nose for special product warranty.
Life-cycle:
Up to 30 years with proper install and maintenance.
Compliance:
ASTM E303 / ASTM E2072 / UL 1994 / UL 410 / IBC / IFC / NFPA 101 / NFPA 170 / OSHA / ADA
APPLICATIONS
Cast-In-Place Stair Nosings
Precast Tread Nosings
Metal Pan Fill Stair Nosings
FREQUENTLY ASKED QUESTIONS
What is a cast-in-place aluminum stair nosing?
A cast-in-place aluminum stair nosing is a durable profile designed to be embedded directly into freshly poured concrete stair treads. Ideal for pan-filled, precast, or cast-in-place stairs, this nosing adds slip resistance, visibility, and long-term wear protection to commercial stairways.
What is the purpose of the removable protective construction cover on your stair nosings?
Our stair nosings include a removable protective construction cover designed to shield the nosing surface during stair fabrication, concrete pours, and construction traffic. This cover helps prevent damage to the visible strip and aluminum finish, ensuring the nosing looks clean and professional upon project completion. Once construction is finished, the cover peels off easily, revealing a like-new surface ready for occupancy.
Why choose aluminum stair nosings over other materials?
Aluminum stair nosings are corrosion-resistant, lightweight, and designed to last the life of the structure. Unlike plastic or rubber alternatives, extruded aluminum profiles won’t warp, crack, or degrade–making them ideal for high-traffic commercial environments.
Are your stair nosings compliant with ADA and IBC codes?
Yes, our cast-in-place stair nosings are manufactured to meet or exceed the International Building Code (IBC) and ADA (Americans with Disabilities Act) guidelines for stair safety. We offer options with contrasting visual strips and slip-resistant surfaces to help meet these requirements.
Can your stair nosings be used on precast concrete stairs?
Absolutely. Our embedded 3-inch aluminum stair nosings are compatible with precast stair treads. Our low profile includes a cast-in anchor into wet concrete.
What finish options are available for your stair nosings?
We offer a variety of finish options including abrasive grit strips, photoluminescent glow-in-the-dark strips, mill or anodized aluminum finishes or powder coated paint. These options provide enhanced visibility, code compliance, and customizable safety solutions.