We renovated the main stairway in our school with these aluminum treads and they look fantastic. Professional appearance, aggressive traction, and the pre-drilled holes made installation easy. Our maintenance team says they’re the best stair treads we’ve ever installed. Zero complaints from staff or parents about slippery stairs since the upgrade.
11 inch x 36 inch Aluminum Stair Treads/Nosing-Double Cavity
★★★★★ 5.0 out of 4 reviews · Google ReviewsRegular price
$155.97
$179.37
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$155.97
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- 6063 T5 extruded aluminum —won’t rust, warp, or degrade — lasts the life of the building
- Pre-drilled countersunk holes —fast install on wood, concrete & metal
- OSHA & ADA compliant — meets walking-working surface & slip-resistance standards
- FREE Shipping — ships to the Continental US
FREE Shipping — Continental US
Est. delivery:10business days - Ships from multiple US warehouses
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Product Overview
The 11x36 inch Aluminum Stair Tread from Sure-Foot Industries provides extended-depth anti-slip coverage with its double-cavity design, ideal for industrial staircases with deeper step profiles. Measuring 11 inches deep by 36 inches long with a 1.220-inch nosing overhang, this tread covers more of the stair surface than the 9-inch models, delivering greater slip protection where it matters most. The mineral abrasive epoxy surface is engineered to be chip and crack resistant for long-lasting performance in high-traffic settings. Weighing approximately 9 lbs, each unit arrives pre-drilled with counter-sunk holes for quick and secure mounting.
Technical Specifications
| AbsorbentsOnline SKU | A411NS20036102F |
|---|---|
| Product Type | Aluminum Stair Tread with Double Cavity |
| Depth | 11 inches |
| Length | 36 inches |
| Nosing Overhang | 1.250 inches |
| Material | Aluminum with mineral abrasive epoxy surface |
| Cavity Design | Double cavity |
| Surface | Chip and crack resistant mineral abrasive |
| Mounting | Pre-drilled with counter-sunk holes |
| Manufacturer | Sure-Foot Industries |
Expert Insights
The 11-inch depth provides additional tread coverage compared to the 9-inch models, making it the right choice when your stair tread depth measures approximately 11 inches from nosing to riser. The 36-inch length is suitable for standard-width staircases commonly found in residential, commercial, and light industrial settings. Double-cavity construction means two separate channels of anti-slip abrasive material, significantly increasing traction compared to single-cavity alternatives. When installing, use corrosion-resistant fasteners appropriate for your stair material and consider applying a bead of construction adhesive behind the tread for additional hold.
Anti-Slip Stair Treads & Tape in Action
Commercial buildings, schools, hospitals, and government facilities install aluminum stair treads during renovation and new construction. The extruded aluminum withstands decades of heavy foot traffic without deformation — and the grit-epoxy surface maintains traction through years of wear, cleaning, and weather exposure.
Purchased by facility managers, safety directors, maintenance supervisors, property managers, general contractors, and procurement teams. All products are manufactured by Sure-Foot Industries in the USA and backed by AbsorbentsOnline’s 40+ years of safety equipment expertise.
Frequently Asked Questions
11 inch x 36 inch Aluminum Stair Treads/Nosing-Double Cavity
Why choose the 11-inch depth over 9-inch?
The 11-inch depth covers more of the stair tread surface for deeper stairs.
What stair width does this fit?
36 inches long, fits standard-width staircases.
Is the abrasive surface replaceable?
No, the mineral abrasive is permanently bonded. Replace the tread when worn.
Can these be used on metal stairs?
Yes, use appropriate fasteners for steel or aluminum stair substrates.
What Our Customers Say
Real reviews from the facilities, field crews, and agencies that count on us.
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These aluminum treads survived three harsh New England winters without any visible degradation. Salt, ice melt, heavy snow boots, and constant foot traffic — they look just as good as the day we installed them. The grit surface still bites hard. These are a once-and-done installation, no annual replacement.
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We order anti-slip products from AbsorbentsOnline for all 12 of our facilities nationwide. Their pricing is consistently 30-40% below what we were paying our old distributor, and they carry everything — tape rolls, die-cut treads, fiberglass covers, and aluminum nosings all from one source. The free shipping on every order adds up to thousands in annual savings. When we call, we get a real person who knows the product line. That kind of service is hard to find today.
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Cross-Reference Guide
This product is compatible with applications that use the following part numbers:
- introThe 11x36 inch Aluminum Stair Tread is manufactured by Sure-Foot Industries with extended depth coverage.
- parts{"part"=>"A411NS20036102F", "description"=>"11x36 in. double-cavity aluminum stair tread"}{"part"=>"A411NS20048102F", "description"=>"11x48 in. version for wider stairs"}{"part"=>"A409NS20036102F", "description"=>"9x36 in. version for standard-depth stairs"}
- noteThe 11-inch depth provides extra tread coverage compared to the 9-inch models.
