A sculptural, space-saving way down from a deck — far less footprint than a straight run. We fabricate ours as one welded aluminum piece, powder-coated to match, so it lands as a focal point rather than an afterthought.
You'll love the deck. You'll remember the experience.
One-piece welded aluminum · Powder-coated finish · Built to fit your deck
We build each spiral stair as a custom, one-piece welded aluminum structure — made to fit one deck, not cut down from stock.
A stair moves people every day, so it has to be sound underfoot and true to the height it serves. Done right, a spiral stair solves a real problem — a compact way to a yard or lower level — and becomes a piece of the design worth looking at, rather than a fixture bolted on at the end.
The difference between a stair that stays quiet and solid for years and one that loosens and rattles is in how it's made. Every spiral stair we build starts as a fabrication problem, not a parts list.
The structure is welded, not bolted together — so there are no fastened joints to loosen or rattle, and it stays rigid and quiet underfoot.
Built to the exact rise, diameter, and rotation your deck needs — measured and made to fit, not trimmed down from a stock kit.
Fabricated in aluminum — it won't rot, rust, or splinter — for a stair that holds its finish and its strength through the seasons.
Finished with a durable, even powder coat in a color chosen to suit the deck and railings — a consistent look, not a mismatched add-on.
A spiral stair performs and looks its best when it isn't treated as an afterthought. On a new build, it's designed alongside the footings, framing, and decking — the complete LeBlanc Deck System — so the height, landing, and finish all line up. A full LeBlanc Deck System build is backed by our transferable 3-Year Workmanship Warranty on the structure; a stair added onto an existing deck is backed by our workmanship warranty as well, with terms that depend on the scope of the work and the condition of what it attaches to.
See how the whole system comes together. The LeBlanc Difference →
A bolt-together kit is only as sound as its fasteners — and fasteners loosen, so the stair develops the rattle and give you feel underfoot. We weld ours into a single rigid structure and custom-fabricate it in aluminum to the exact rise, diameter, and rotation your deck calls for. The result is a stair that stays tight and quiet for the long run, and reads as a designed piece rather than a stock part.
Aluminum is the right material for a stair that lives outdoors — it won't rot, rust, or splinter, so the structure keeps its strength and its looks year after year with almost nothing asked of you.
The finish is a durable, even powder coat in a color chosen to suit the deck and railings. Because we fabricate the stair to match, it pairs cleanly with our aluminum railing systems for one consistent look — the stair, the rail, and the deck reading as a single piece of work rather than parts from different boxes.
The materials we've chosen →
A spiral stair has to land where it should and clear what the code requires. We work out the height, the landing, and the clearances up front, then fabricate the stair to those measurements — so it installs clean and fits the deck instead of forcing the deck to accommodate it. Planned alongside a new deck, that coordination is built in from the start.
A spiral stair can also be added to an existing deck when the structure and the landing allow — we evaluate the conditions first and tell you honestly whether it's a good fit before anything is fabricated. Pair it with step and riser lighting and the stair stays safe and inviting after dark.
See the lighting that makes a stair safe after dark. Lighting →
A full straight staircase won't fit, or would eat up more of the yard and deck than you want to give it.
You need access to the yard, a lower deck, or grade — without sacrificing usable deck area to a wide stair.
You want a rust-free aluminum stair, powder-coated to coordinate with the railings for one consistent look.
You want the sculptural form of a spiral — but built to a real fabrication standard, not bought as a rattling kit.
A spiral stair should solve the space problem and look like it was meant to be there. That's the standard we fabricate to.
“Very nice work and beautiful details! These guys really know what they're doing!”
A spiral stair rarely stands alone. These are the natural pairings — the railing it matches, the lighting that keeps it safe after dark, and the deck it serves.
Aluminum railing systems, powder-coated to coordinate — so the stair and the rail read as one consistent look.
Explore railings →Low-voltage step and riser lighting that keeps a spiral stair safe — and beautiful — after dark.
Explore lighting →Our flagship — the wood-free, engineered structure a spiral stair is built to serve and fit.
Explore composite decks →Tell us about your deck and where the stair needs to go. We'll help you think it through — the space you have, the height it serves, and the finish that ties it to your railings — with no pressure and no obligation.
Start with a short form — we'll review your project and reach out. Serving Knoxville & East Tennessee · Licensed & insured · 3-Year Workmanship Warranty
Engineered outdoor structures built for long-term performance. · Knoxville & East Tennessee · Lic #79196