QuickStep aluminum stair stringers solve the two biggest headaches with exterior stairs: slow installation and structural failure. The system cuts installation time by approximately half compared to traditional wood stringers, while supporting over 4,400 lbs per step at 36-inch spacing when used with compatible components. At 4.8 stars across multiple retailers, contractors have found a stair system that actually delivers on its promises.
For Montana contractors dealing with freeze-thaw cycles, UV exposure at elevation, and clients who want decks finished before the snow flies, this aluminum system changes the equation. High-strength, never-rust aluminum alloys mean no rot, no rust, and no callbacks for sagging stairs.
Installation Speed That Actually Matters
The system reduces installation time by half compared to traditional wood stairs. That’s not marketing fluff — it’s what happens when you eliminate the need for complex cuts and calculations. The system eliminates the need for landings with its connector kit, simplifying installation.
The undermount design keeps fasteners hidden while maintaining full structural integrity. Installation follows a straightforward sequence: identify right and left stringers, set them at maximum 36-inch spacing with QuickStep treads, mount the top using code-compliant fasteners, fasten the bottom (requires blocking for decks or masonry fasteners for concrete), position treads, pre-drill holes for S114 fasteners, secure treads using S114 screws from back to front, and install aluminum riser covers with color-matching WCS-50 screws.
The stringers come in configurations from 1 to 9 steps, with specific rise and run dimensions for different deck heights (60”, 67.5”, 75”). No custom cutting angles. No landing complications. Just bolt them in and move on.
Load Capacity and Code Compliance
The system supports over 4,400 lbs per step at 36-inch spacing — that’s serious structural capacity. The system meets or exceeds U.S. and Canadian Building Code specifications, with approval for up to 12 storey use in Multi-Family applications.
The treads feature flameproof, waterproof S-Glass fiber construction that resists twisting, expansion, and shrinking. In Montana’s extreme temperature swings, that dimensional stability matters. Wood treads cup and twist. These don’t.
| Specification | Value |
|---|---|
| Load Capacity | Over 4,400 lbs per step (at 36” spacing) |
| Rise | 7.5 inches |
| Run | 10.5 inches |
| Max Spacing | 36 inches between stringers |
| Step Options | 1 to 9 step increments |
| Tread Size | 48”L x 11”D x 1½”H |
| Materials | High-strength, never-rust aluminum alloys |
Weather Resistance Without the Maintenance
Premium UV powder-coat finish handles Montana’s intense high-altitude sun. The finish carries a 10-year warranty for residential use. Available in Black, White, and Yard Bronze to match existing deck aesthetics.
The aluminum construction eliminates the annual staining ritual that wood stairs demand. No checking, no splitting, no moisture damage at the ground contact points. Anti-slip grooves on tread top surface provide traction without the maintenance headaches of add-on strips.
Structural components carry a 20-year warranty. That’s confidence in long-term performance, not just initial appearance.
Complete System Integration
The modular approach extends beyond just stringers. The system includes QuickStep Stonewood Treads (48’L x 11’D x 1.5’H) with S-Glass fiber construction, and is fully compatible and color-matched with Regal Railing systems.
Aluminum riser covers attach easily to QuickStep stringers to enclose the back of stairs, providing a clean, finished look. Each riser cover measures 7-3/8” W x 3” D x 48” L and is color-matched to Regal’s railing and stringers. Fasteners are sold separately.
Connector kits eliminate the need for landings, allowing longer stair runs without the complexity of intermediate platforms. The connector kit handles up to 14 steps.
The Bottom Line
QuickStep delivers on its core promise: faster installation without sacrificing strength. Customers praise the excellent quality for the price, modern and clean appearance, and lightweight but sturdy construction.
For contractors tired of callbacks on rotting stringers or sagging stairs, the aluminum system offers genuine peace of mind. The 4.8-star average rating reflects real-world performance, not marketing promises.
The trade-off? Higher upfront cost than pressure-treated lumber. But factor in zero maintenance, no callbacks, and half the installation time — the math starts working in QuickStep’s favor. Especially for elevated decks where stair replacement means major disruption.
Frequently Asked Questions
Q: What’s the actual time savings compared to building wood stringers?
A: QuickStep cuts installation time by approximately half compared to traditional wood stringers. The pre-engineered rise and run eliminates layout calculations, and the connector kit eliminates the need for complex landing configurations.
Q: Can these stringers handle Montana snow loads?
A: The system supports over 4,400 lbs per step when installed at the maximum 36-inch spacing. The stringers meet or exceed both U.S. and Canadian building codes, which include snow load requirements. The structural components carry a 20-year warranty.
Q: What tools and fasteners do I need that don’t come with the stringers?
A: Required items include S114 self-drilling screws for treads, WCS-50 screws for riser covers, and a standard power drill with bit extender. Top mounting requires code-compliant fasteners, while bottom mounting needs blocking for decks or masonry fasteners for concrete.
Q: How do these aluminum stairs perform in freeze-thaw cycles?
A: The high-strength, never-rust aluminum alloys eliminate moisture absorption entirely. The treads are flameproof and waterproof, resisting twisting, expansion, and shrinking. Unlike wood, there’s no moisture to freeze and expand.
Q: What’s the maximum stair height these can handle?
A: Stringers come in 1 to 9 step increments. The 9-step configuration accommodates deck heights up to 75 inches. For longer runs, the connector kit allows up to 14 steps total.
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