Spiral & Curved Stairs

Spiral stairs create a funky industrial look or can be a natty solution when space is limited. They can be purposely built to fit in tiny spaces. Spiral stairs are a practical and fun way to get around. Elegant sweeping helix or curved stairs make a statement in both classic and modern homes. Our team welcome the challenge of making these complex masterpieces.

Division Engineering is a Christchurch-based architectural steel fabricator specialising in custom spiral staircases for residential and commercial projects across the South Island. Based in Kaiapoi, we design, fabricate and install bespoke spiral staircases engineered to suit your building's layout, structure and architectural vision, with every dimension confirmed via 3D modelling before a single piece of steel is cut.

As experienced spiral staircase designers and fabricators, we combine accuracy and imagination to solve real spatial problems while delivering architectural impact.

From concept through installation, we work directly with architects, builders, designers and homeowners. We thrive on tight spaces, impossible footprints and elegant solutions. Compliance with the New Zealand Building Code is non-negotiable.

Custom spiral
staircase design

Every Division spiral staircase starts on the drawing board with our in-house design and draft team. Our team of experienced spiral staircase designers, work alongside architects, builders, interior designers and homeowners to refine the geometry, centre column, tread profile and balustrade before a single piece of steel is cut.

Using 3D modelling, we cross-check every dimension against your plans and your stair opening, so what you sign off is exactly what gets installed. Exceptional design deserves more than an off-the-shelf kit, we engineer each staircase from scratch to suit your space, style and budget.

Spiral vs curved
staircases design

Both make a statement, but they solve different problems:

Spiral staircases wind around a central column in a tight circle. They have the smallest footprint of any stair, which makes them ideal for mezzanines, lofts, tight corners and anywhere floor space is limited.

Curved or helical staircases sweep in an open arc with no central pole. They need more room and read as a grander, architectural feature in entranceways and double-height spaces.

Not sure which suits your project? Send us your plans and we'll can help you discover what fits your space and the look you're after.

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Why Division
Engineering?

Collaborative customisation

Exceptional design deserves more than off-the-shelf solutions. We partner with notable as well as inexperienced architects, builders, designers and owners, to offer advice on pre-construction and specification details.

Depth of expertise

With a legacy of excellence in architectural steel fabrication, we bring both technical mastery and design sensitivity to every commission. Our team understands the nuances of working with complex forms and high-spec projects, ensuring flawless execution from drawing board to final install.

Quality without compromise

Reliable, accurate uncompromising craftsmanship – at any scale – from any stage. Strict quality control measures make for consistently high standards and a business that is built on the foundation of repeat custom and recommendations.

Project Steps

Architectural Staircase Design and 3D Modelling

Our in-house design and draft team will work closely with you to minimise any stress or uncertainty. With the aid of 3D modelling software, we’ll ensure your architectural stairs are made to measure and deliver on the promise of your original design. We’ll cross-check all measurements and dimensions are correct before we move on to metal fabrication.

Fabrication & Project Management

Your staircase will have its very own project manager and fabrication team working closely together to ensure all quality aspects and programme requirements are met.

Finished Product & Installation

Throughout installation, your stairs will be handled by a dedicated team of site installers who are highly-trained in staircase erection. Without exception, all stairs will be installed to the high-quality specifications we pride ourselves on, to achieve an uncompromising end-result.

What our clients say about us.

“We have worked alongside Division Engineering for the past 10 years; their knowledge and workmanship are absolutely second to none and their input on every job is invaluable . Anthony is a very skilled tradesman, and I highly recommend him for your next job”

Blair Watson, Gregg Architectural Builders
“We’ve worked with Division Engineering for years and always find them reliable. They deliver excellent products and service, and their communication is great. Regardless of the size of the project, their attention to detail is excellent. We highly recommend them.”

Chris Beer Architectural Builders
“We have had the pleasure of working with Division for over six years and continue to be impressed by their consistent quality, professionalism, and creative approach. Their workmanship is of a high standard, and they have proven to be a reliable and valued partner on every project.”

Leon and Ellen from Phoenix Construction & Management Ltd
“CJC Construction has worked with Anthony, Helen and Arthur for nearly 10 years. We mainly do high-end architectural housing, requiring custom design and expertly finished items, hence we use Divsion alot! They have provided so many things for us from powder coating to structural steel, to custom architectural detailing, and we trust in their experience and expertise, plus they are great to deal with. We do not hesitate in recommending them.”

CJC Construction Ltd

Discuss
your project

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03 379 3484

Frequently Asked Questions

What is a spiral staircase?

A spiral staircase rotates around a central column in a tight circle. the smallest footprint of any staircase. Ideal for mezzanines, lofts, tight corners and anywhere floor space is precious. It's a statement piece that solves real spatial problems while delivering architectural impact.

How much does a spiral staircase cost in Christchurch?

Cost depends on diameter, height, materials, finish and balustrade design. Because every spiral staircase is custom-engineered to your building and space, pricing is confirmed after we review your architectural plans and assess site conditions.

Do spiral staircases meet NZ Building Code requirements?

Compliance is non-negotiable. Every spiral staircase we design meets NZBC requirements for tread dimensions, handrail design, head clearance and balustrade heights. During design, we assess whether your spiral works as primary or secondary access and engineer accordingly.

What's the difference between a spiral and curved (helical) staircase?

Spirals wind tightly around a central column, ideal for compact spaces. Curved (helical) staircases sweep in an open arc with no central pole, they need more room and read as a grander architectural feature. Send us your plans and we'll recommend which suits your space and vision.

What materials do you use to make spiral staircases?

Mild steel, combined with timber treads, glass balustrades or custom metal infills. Finishes are selected for durability, interior or exterior application, and architectural intent. Every material choice serves the design.

Do you install spiral staircases for commercial buildings?

Yes. Spiral staircases are widely used in commercial and architectural projects for secondary access, mezzanine levels, fire egress and space-efficient circulation. Each is engineered to meet compliance standards and functional demands.

Can you design and build spiral stairs in Christchurch?

Yes. Based in Kaiapoi, Christchurch, Division Engineering designs, fabricates and installs custom spiral staircases for residential and commercial projects throughout Christchurch, Canterbury and the South Island. Every spiral staircase is custom-engineered in-house using 3D modelling, from concept through installation with proactive engineering project management every step of the way.

Spiral & Curved Stairs

Custom spiral
staircase design

Spiral vs curved
staircases design

Gallery