Fusion Wood-Steel Spiral Staircase Ø120-160 cm

Name: Fusion Wood-Steel Spiral Staircase Ø120-160 cm
Brand: Minka
SKU: Fusion
Price: 2349 EUR
Availability: InStock

Fusion spiral staircase – Exceptional hybrid steps: half solid wood, half powder-coated steel, reversible (wood or steel visible). Adjustable step height 182-227 mm. Four wood species, three metal finishes. Diameter 120 to 160 cm. Extendable up to 3405 mm (2 additional steps as an option). Maximum flexibility, hybrid robustness.

Wood species

Staircase diameter

Metal colour

Reference 44201

€2,349.00 incl. tax

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Description
Product Details

The Fusion spiral staircase redefines the flexibility of a compact staircase. Its steps are uniquely designed: half solid wood, half powder-coated steel. This reversible configuration allows you to choose which face is visible — natural wood or metallic steel — according to your aesthetic preferences and maintenance requirements. The result is a staircase that is both stylish and extremely robust, where the two materials complement each other to offer durability and visual flexibility.

Available in three diameters — 120 cm, 140 cm or 160 cm — the Fusion adapts its footprint and clear passage width to your space. The prefabricated structure, manufactured in Austria, guarantees precision and reliability. But the true strength of the Fusion lies in its dimensional adaptability: the height of each step is adjustable between 182 and 227 mm, allowing fine adjustment to your specific floor height. For exceptionally high floors, the system accepts up to two additional steps (as an option), bringing the spanned height up to 3405 mm — compared to 2951 mm in standard configuration.

Four wood species — beech, oak, walnut-stained beech, white-stained beech — and three metal finishes — black, grey, white — offer remarkable combinatorial freedom. The powder-coated steel barrier, PVC handrail and stainless steel lower chords ensure standardised safety and lasting comfort of use. The Fusion is not a transitional staircase: it is a solution designed for homeowners who refuse to compromise between technical adaptation and aesthetic expression.

Main features

Characteristic	Fusion 120 cm	Fusion 140 cm	Fusion 160 cm
Diameter (outer radius)	1200 mm (600 mm)	1400 mm (700 mm)	1600 mm (800 mm)
Minimum ceiling opening	1300 x 1300 mm	1500 x 1500 mm	1700 x 1700 mm
Step height (adjustable height)	182 mm to 227 mm with fine adjustment (precise adaptation to your floor height)
Step depth (going)	210 mm	236 mm	244 mm
Clear passage width	486 mm	586 mm	686 mm
Rotation per step	29°	25°	22°
Number of steps	12 steps + 1 fixed landing
Standard floor height (max)	2951 mm (finished floor to finished floor)
Height extensions (made to order)	+ 1 step: 3178 mm \| + 2 steps: 3405 mm (additional cost, extra lead time)
Steps (composition)	Half solid wood + half powder-coated steel, reversible (thickness 26.5 mm)
Available wood species	Beech, oak, walnut-stained beech, white-stained beech — all with clear lacquer
Powder-coated steel finishes	Black, grey or white (steps, balusters, spindle, railing)
Handrail	PVC Ø40 mm (black, grey or white)
Lower chords (underquirt)	Stainless steel (enhanced safety)
Railing height	1000 mm (safety standard)
Spindle (central axis)	Powder-coated steel Ø108 mm
Balusters	Powder-coated steel Ø22 mm, spacing < 100 mm
Manufacturing	Austria (Minka), factory prefabricated

Options and configurations

Reversible steps (wood or steel visible): The Fusion offers unique visual flexibility. You can install the steps with the wood side facing up (natural look, warmth) or the steel side facing up (industrial/contemporary look). This configuration is chosen at the time of ordering and is permanent: no reversal after installation.

Wood species and finishes: Four lacquered wood options (natural beech, oak, walnut-stained, white-stained) combine with three powder-coated steel finishes (black, grey, white), offering 12 possible aesthetic combinations.

Diameters and clearance: The Fusion 120 cm is optimal for small spaces. The 140 cm offers better freedom of movement. The 160 cm maximises the clear passage width (686 mm) for trips with bulky objects or intensive use.

Height extensibility: In standard configuration, the Fusion spans a maximum of 2951 mm. For higher floors, two extension options exist (1 or 2 additional steps) allowing you to reach 3178 mm or 3405 mm. These extensions incur additional costs and manufacturing lead time. Contact customer service for technical feasibility and extension pricing.

Key features

✓ Unique reversible steps: Half wood, half steel — choose natural wood or steel visible at the time of ordering
✓ Adjustable step height 182-227 mm: Precise adaptation to your specific floor height without compromising on safety
✓ Extendable up to 3405 mm: 2 additional steps as an option for non-standard floors (made to order, contact customer service)
✓ Hybrid robustness: Wood + steel steps = maximum resistance to wear and prolonged durability
✓ Aesthetic freedom: 12 combinations (4 wood species × 3 metal finishes) + 3 diameters to match the design to your interior
✓ Standardised safety: Railing 1000 mm, stainless steel lower chords, balusters < 100 mm, staircase compliant with standards
✓ No additional treatment required: Factory lacquer on wood, durable powder-coated steel — ready to install

Installation advice

Before ordering — essential measurements: Record your exact floor height (finished floor to finished floor) in mm. Check the ceiling opening: 1300 x 1300 mm (diam. 120), 1500 x 1500 mm (diam. 140), or 1700 x 1700 mm (diam. 160). If the floor height exceeds 2951 mm, ask customer service about the feasibility of an extension (1 or 2 additional steps). These measurements determine the dimensioning and price of your Fusion.

Determining the step height: The adjustable step height between 182 and 227 mm allows fine adaptation. With 12 steps, the total height varies from 218.4 cm (182 × 12) to 272.4 cm (227 × 12). Your exact floor height determines the optimal step height: for example, to span 2650 mm in 12 steps, the step height will be approximately 221 mm. When ordering, provide your exact floor height, and the service team will confirm feasibility and the required adjustment.

Step configuration (wood or steel visible): When ordering, specify whether you prefer steps with wood visible (upper face) or powder-coated steel visible. This aesthetic choice is made in the factory and is final. Wood offers natural warmth and a possible patina over time. Steel offers a contemporary look with minimal maintenance. No changes after installation.

Site preparation: The floor support must be flat, stable and capable of bearing the concentrated load of the central spindle (minimum structural support). The ceiling requires solid anchoring (concrete, steel structure). A minimum of 2 m² of access around the base is needed to receive the modules. The staircase arrives pre-assembled in sections. Assembly is estimated at 5–7 hours with two experienced fitters: vertical spindle positioning, step stacking, floor/ceiling fixing, railing and handrail assembly. No on-site timber cutting or adjustment required.

On-site extensibility: If you are considering a future extension (additional steps), fitters must flag this at the time of installation. A subsequent extension (outside the initial order) requires a full intervention and removal of the existing steps. Plan for extensibility from the outset if the floor height is likely to change.

Maintenance and care

Lacquered wood — visible face: Clean twice a month with a microfibre cloth dampened with warm soapy water (neutral pH). The factory lacquer protects the wood without any additional treatment. Avoid standing water and harsh solvents (alcohol, acetone). Over time (10–15 years), if the lacquer shows visible wear, professional re-varnishing will restore protection and appearance.

Powder-coated steel — visible or hidden face: Wipe monthly with a dry cloth. In humid or coastal environments, a damp cloth is sufficient. Check annually for any chips in the powder coating exposing bare steel (possible sign of corrosion). In the event of deep scratching, powder-coated steel touch-up is available on request.

PVC handrail and railing: Clean with neutral soapy water, never abrasive. PVC requires no specific treatment and retains its colour (no natural discolouration). Check the stability of the railing at support points (every 1.5 m) annually.

Lifespan: With regular maintenance, the Fusion retains its functional and aesthetic performance for a minimum of 15–20 years. The hybrid wood-steel composition extends the useful life compared to all-wood or all-metal staircases alone. No structural limit under normal residential use.

Frequently asked questions

What does "reversible steps" mean on the Fusion?

The Fusion's steps are composed of half solid wood, half powder-coated steel. This double-sided configuration allows you to choose at the time of ordering whether the wood is visible facing upwards (natural look, warmth) or whether the powder-coated steel is visible (contemporary, minimal look). This aesthetic choice is made in the factory and cannot be changed after installation. It is a design flexibility, not a possibility of reversal at a later stage.

How does the step height adjustment between 182 and 227 mm work?

The height of each step is adjustable between 182 mm and 227 mm, allowing fine adaptation to your specific floor height. With 12 steps, this adjustment covers a wide range: from 218.4 cm (if all steps = 182 mm) to 272.4 cm (if all steps = 227 mm). Example: to span 2650 mm, the optimal step height would be approximately 221 mm. When ordering, provide your exact floor height, and the customer service team will confirm feasibility and the corresponding step height.

Which diameter to choose: 120, 140 or 160 cm?

This depends on your available space and comfort of use. The Fusion 120 cm offers a minimal footprint (1200 × 1250 mm) for small spaces. The Fusion 140 cm provides a more generous clear passage (586 mm vs 486 mm) and better climbing comfort. The Fusion 160 cm maximises the clear passage (686 mm) for carrying bulky objects or intensive use. If space allows, the 140 cm or 160 cm offer better ergonomics. In small spaces, the 120 cm remains functional and safe.

What is the maximum floor height the Fusion can span?

In standard configuration with 12 steps, the Fusion spans a maximum of 2951 mm (finished floor to finished floor). For higher floors, two extension options exist: adding 1 step (3178 mm) or 2 steps (3405 mm). These extensions incur additional manufacturing costs and extra lead time. Contact Woodup's customer service to assess feasibility, pricing and lead time based on your specific floor height.

Does the wood need to be treated or maintained after installation?

No. The wooden steps benefit from a durable, complete factory transparent lacquer. No additional treatment (oil, saturator, varnish) is required after installation. Routine maintenance: simple cleaning with a damp cloth and neutral soapy water, twice a month. This minimal maintenance preserves the lacquer and maintains appearance. After 10–15 years, if the lacquer shows visible wear, optional professional re-varnishing will restore protection.

How do you maintain the powder-coated steel part of the steps?

Powder-coated steel is very robust and requires minimal maintenance. Wipe monthly with a dry cloth, more frequently in humid (coastal) environments using a slightly damp cloth. Check annually that the powder coating has no deep chips exposing bare steel (risk of corrosion). In the event of significant scratching, powder-coated steel touch-up is available on request. The durable powder coating (grey, black or white) retains its colour and protection for 15–20 years with normal maintenance.

Can I change the wood/steel orientation of the steps after installation?

No. The wood-face-visible or steel-face-visible orientation is decided at the time of ordering and is carried out in the factory. Once the staircase is installed, this choice is final and cannot be changed without complete dismantling and manufacturing of a new staircase. This is why it is important to think carefully before ordering: do you prefer the natural look of wood or the contemporary look of powder-coated steel?

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