Mono & twin stringer stairs
Feature stairs on a single central spine or paired stringers, with metal treads and a coordinated metal balustrade.
Custom fabrication · Architectural
Steel stairs and stringers, fabricated to your drawings or ours.
Steel stairs
Mono-stringer, twin-stringer and folded-plate steel stairs for houses, decks, mezzanines and commercial buildings, built to the engineer's detail and finished galvanised, powder coated or raw. Metal treads in checker plate, stainless or open grating.
Indicative pricing · NZD
$2,500
from, + GST
Deck stringers from $2,500; internal stairs typically $8,000–$25,000 + GST
Price guide & quoted scopeOr call Matt 021 2555 443
- Built to detail
- Engineer's or architect's drawings
- Any finish
- Galvanised, powder coated or raw
- Metal treads
- Checker plate, steel grating or stainless
02 / Price & scope
Indicative steel stair pricing.
Indicative range only. Rise, number of flights, tread material, balustrade and finish all move the price a long way.
Discuss your quote with MattCustom steel staircase
From a pair of galvanised deck stringers to a feature mono-stringer stair.
$2,500from, + GST
Deck stringers from $2,500; internal stairs typically $8,000–$25,000 + GST
Details to agree for your job
- Fabricated to the engineer's detail
- Galvanised, powder coated or raw finish
- Treads and balustrade to match the house
- Installed by us across Auckland
Scope & other costs
Balustrade is priced separately — see the handrails and balustrades page. Engineering (PS1) is by your engineer.
03 / Also built here
Plan the rest of your project.
Explore related products, or talk to the Patumahoe workshop about stainless steel, aluminium and mild steel fabrication.
Access platforms & stepovers
Platforms and crossovers for equipment servicing, working positions and routes across a plant.
Fixed access ladders
Permanent access ladders with mounting and landing details made for plant and service areas.
Handrails & balustrades
Stair rails, deck balustrades, wire-rope and glass-post systems, made and installed.
04 / The practical details
Questions about steel stairs and stringers.
Do I need an engineer?
Internal and most external stairs that are part of a building consent need a producer statement from an engineer. We fabricate to their detail and can point you to engineers we have worked with.
What treads can you fit?
Checker plate, stainless, folded metal plate or open metal grating. We choose the metal tread and fixing arrangement around the use, drainage, cleaning and project requirements.
Do you install?
Yes. Stairs are trial-fitted in the workshop, then delivered and installed by us, usually together with the handrail or balustrade.
How it works
Spec, quote, fabricate, fit.
01
Spec
We confirm size, materials, the loadings or spec and how it will be used.
02
Quote
It is all priced before any steel is cut, so there are no surprises.
03
Fabricate
Built in the Patumahoe workshop to the agreed spec.
04
Fit
Delivered, fitted or installed and checked over before handover.
Let’s make it fit
Show Matt what you’re working with.
Send through photos, rough measurements and how it’ll be used — we’ll come back with a practical next step and a price.