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 48 inch Aluminum Stair Treads/Nosing-Double Cavity
★★★★★ 5.0 out of 4 reviews · Google ReviewsRegular price
$199.97
$229.97
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$199.97
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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 11x48 inch Aluminum Stair Tread from Sure-Foot Industries is the largest model in the double-cavity anti-slip line, designed for wide industrial staircases with deeper step profiles. At 11 inches deep by 48 inches long with a 1.220-inch nosing overhang, this tread provides maximum surface coverage and slip protection on the most demanding stairways. The mineral abrasive epoxy coating is chip and crack resistant, maintaining reliable traction under heavy foot traffic, wet conditions, and industrial wear. Weighing approximately 12 lbs, each tread is pre-drilled with counter-sunk holes for secure, efficient installation.
Technical Specifications
| AbsorbentsOnline SKU | A411NS20048102F |
|---|---|
| Product Type | Aluminum Stair Tread with Double Cavity |
| Depth | 11 inches |
| Length | 48 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
As the largest tread in the Sure-Foot double-cavity lineup, the 11x48 is the go-to choice for wide industrial staircases with deep step profiles, such as those found in warehouses, manufacturing plants, and outdoor access structures. The 11-inch depth ensures full coverage from nosing to near the riser, while the 48-inch length spans wider stair openings without leaving unprotected edges. At 12 lbs per unit, this is the heaviest tread in the series, so factor the added weight into your shipping and handling plans when ordering multiple units for a full staircase retrofit. Use stainless steel or hardened fasteners rated for your substrate to ensure long-term hold under heavy industrial foot traffic.
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 48 inch Aluminum Stair Treads/Nosing-Double Cavity
Is this the largest aluminum tread available?
Yes, the 11x48 is the largest in the Sure-Foot double-cavity lineup.
How much area does this tread cover?
11 inches deep x 48 inches long per tread. Order one per stair step.
Are these ADA compliant?
The anti-slip surface meets industrial safety standards for slip resistance.
What is the weight per tread?
Approximately 10 lbs per tread due to the larger aluminum profile.
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 11x48 inch Aluminum Stair Tread is the largest model from Sure-Foot Industries double-cavity line.
- parts{"part"=>"A411NS20048102F", "description"=>"11x48 in. double-cavity aluminum stair tread"}{"part"=>"A411NS20036102F", "description"=>"11x36 in. version for standard-width stairs"}{"part"=>"A409NS20048102F", "description"=>"9x48 in. version for standard-depth stairs"}
- noteThe largest standard aluminum tread, ideal for wide industrial staircases with deep steps.
