Spiral Stairs
SPIRAL STAIRCASE · METAL · WOOD · KIT-FORM
the helix becomes a sculpture inside its center column
Indoor helical stairs are the tight-footprint answer when a straight or curved flight will not fit. Think of a second-floor study above the living room, a loft conversion, a library upper level, an apartment second level. The helix becomes a sculpture in the room, wrapping around its center column. The whole stair lives inside a circle no wider than the tread arc. Most enquiries here are a wooden spiral staircase for a villa or new-home interior, or a metal central-column stair for an apartment loft. Send the finished floor-to-floor height and the circle diameter you can give it. We size the rest.
VILLA & COUNTRY HOME
Villa library mezzanines, wine-cellar entrances, art-room upper levels, and statement loft stairs in private homes. Mezzanine helical stairs in steel and hardwood, paired with cable, glass, or wrought-iron balustrades — the helix becomes a sculpture in the room. Custom column diameters and tread profiles let the stair match an existing interior detail rather than fight it.
NEW HOME BUILD
Designed in from architectural plans — a second-floor study above the living room, attic access, basement-to-main openings, small second-floor stairways. Two products dominate here. The wooden spiral staircase pairs a steel column with hardwood treads and a hardwood handrail for a warm look. The residential spiral staircase kit pairs a steel column with steel or composite treads, sized to a standard deck-to-deck rise. Both fit through a standard interior door for delivery.
APARTMENT & CONDO
Loft apartments and split-level condo units where the second level needs access without giving up a hallway. A tight-footprint sculpture opens up the floor plan instead of carving into it. Spiral staircase dimensions are tuned to the room. We draw the tread arc against the upper-floor opening so headroom clears and the top landing aligns with the deck edge. The metal spiral staircase on a steel center column reads as the industrial-loft choice; the wooden spiral reads warmer for a residential interior.
BATCH RENOVATION & MULTI-UNIT DEVELOPMENT
When the same spiral repeats across multi-unit renovations or split-level developments — same diameter, same tread count, same column height. The helical stair kit repeats unit to unit, letting an owner-developer order a full building's worth in one batch. Treads ship in steel plate or hardwood depending on the interior spec sheet.
Spiral Staircase — Range Overview
| Product | Material | Style | Best For |
|---|---|---|---|
| Interior Spiral Staircase | Powder-coated steel column + hardwood treads | Round helical, warm interior | Loft conversions, attic and second-floor access |
| Wooden Spiral Staircase | Steel column + solid hardwood treads & handrail | Traditional residential | Villa libraries, country homes, formal interiors |
| Metal Spiral Staircase | Powder-coated steel column + steel-plate or chequer treads | Industrial loft, minimalist | Loft apartments, split-level condos, modern interiors |
| Mezzanine Spiral Staircase | Steel column + steel or hardwood treads | Compact helical, tight diameter | Villa library upper levels, mezzanine interiors |
| Residential Spiral Staircase Kit | Steel column + composite or hardwood treads | Kit-form, standard vertical rise | Single-family homes, batch unit installs |
| Exterior / Outdoor Spiral Staircase | Galvanized or stainless column + steel or composite treads | Weatherproof round helical | Pool decks, balconies, roof terraces, coastal exteriors |
About Our Spiral Staircase Range
A spiral staircase is a helical flight that winds around a single center column. It is the smallest stair footprint, designed for lofts, mezzanines, and second-floor access where a straight or curved run will not fit. Helical stairs get specified for one reason: the footprint. An owner comes to us when the floor plan does not have room for a straight or curved flight. The upper level still has to be reachable. Our enquiries here run heavy on residential conversions. Homeowners add a loft level, owners fit a second-floor study above a living room, or owners open a basement up to a main-floor library. Search interest reflects that. Spiral staircase dimensions, spiral staircase size, circular staircase, round staircase, pictures of spiral stairs — all from owners sizing the stair against an existing room. Apartment and condo enquiries arrive next — loft-apartment second levels, split-level unit access. These often specify a metal helical staircase on a powder-coated column for the industrial-loft read.
A helix is built around its center column. Steel column with steel-plate treads gives the industrial-loft and mezzanine look. The same steel column pairs with solid hardwood treads (oak, walnut, ash) and a hardwood-clad handrail. This is the wooden spiral staircase finish that suits libraries and period interiors. Helical stair kits for repeat residential installs run pre-engineered to a standard rise range. Quoting and lead-time match a catalog product rather than a one-off build. Balusters carry from the tread edge to the handrail in stainless cable, glass infill, wrought iron, or hardwood spindles. Every spiral staircase for sale we quote includes the column, treads, baluster sleeves, top landing flange, handrail, and fixings as a single kit. A PDF assembly manual walks an installer through the stack-up tread by tread.
Designed in our Guangdong studio and crafted in our 4,500 m² workshop. Every helix is stood up on the workshop floor for trial assembly, then disassembled and packed in stack order on a single pallet per stair. We produce, trial-assemble, and crate the kit. On-site install and local code stamping run through your contractor and licensed engineer.
Keep reading: Browse the full Staircase Collection → · Compare Straight Staircase → · Compare Curved Staircase →
Spec Snapshot — Spiral Staircase
A plain-language summary of what owners typically choose before sending the room dimensions. Final dimensions and code references come from the shop drawings.
How to Spec a Spiral Staircase for Your Project
The owner view: what to measure, what to send, and how to settle the diameter and material questions before we draw.
- Measure the floor-to-floor rise. Finished-floor to finished-floor — the column and tread count both adjust to this.
- Measure the diameter you can give it. The clear circle the helix has to fit into — bound by the wall, furniture, or column line nearest the stair.
- Send the upper-floor opening dimensions. Top of the stair lands into the upper floor — the opening must be wide enough for the top landing flange and headroom clearance.
- Choose the material read. Wooden spiral (steel column + hardwood treads + hardwood handrail) for villas and libraries. Metal spiral (steel column + steel-plate treads) for loft apartments. Kit-form spiral (pre-engineered to a standard rise range) for repeat residential installs.
- Tell us residential or commercial. Residential diameters can run tighter; commercial floors typically need a wider tread arc. Your local engineer carries the final compliance check.
- Send it through. We return the column length, tread arc, headroom envelope, top-landing flange, and code-reference list. Your local engineer signs off and your installer stacks the treads on site.
Frequently Asked Questions
Answers below cover the diameter, material read, and freight questions owners and contractors ask before placing a helical kit order. If yours is not here, send the room dimensions through Request a Drawing Review.
What floor-to-floor height does a helical stair fit?
A helix is height-flexible. The tread count and the center column length both adjust to the rise. Send the deck-to-deck rise and we tune the riser height inside code limits. A typical residential vertical run sits comfortably inside a standard column, while taller commercial mezzanines just use a longer column.
How tight a footprint can a helical stair go?
The tread arc sets the minimum diameter — narrower for residential use, wider for commercial use. Tell us whether the stair serves a residential or commercial use and we return the smallest diameter your local engineer typically accepts. Anything tighter than the tread-arc minimum may not pass your local engineer's compliance check.
What's the difference between a wooden, steel, and kit-form spiral?
Wooden spiral = steel center column with solid hardwood treads and a hardwood-clad handrail — warm residential read. Steel spiral = steel column with steel-plate or chequer treads — industrial loft and mezzanine read. Kit-form spiral = a pre-engineered residential package sized to a standard vertical run between levels. Order it against a fixed diameter; it ships as a catalog item rather than a custom build.
Can your drawings be stamped by a licensed engineer in my country?
Yes. Shop drawings reference the code families for the United States, Australia, and Canada (IRC, IBC, AS 1657, AS 1288, NCC, CSA). Final stamping is handled by a licensed engineer in your jurisdiction through our partner network or yours.
How is a helical stair packed for ocean freight?
Helical stairs ship in flat-pack, photo-documented packing. The center column boxes separately, treads stack in stair-up order on a single pallet, balusters and handrail sections bundle together, fixings come boxed and tagged. A PDF assembly manual ships with every kit.
Explore Related Collections
