Inboard String Staircases
An inboard string staircase gives a lighter visual line while keeping a strong steel-led structure.
It is often chosen where clients want clean glass detailing with a refined modern look.
Each inboard string staircase is designed around your layout, your preferred finishes and the way the staircase will be used in everyday life.
Design and Technical Review
Every inboard string staircase starts with a practical review of measurements, structural interfaces, balustrade layout and finish direction.
We keep this stage straightforward, so key decisions are made early and the fabrication package is clear before manufacturing begins.
Where needed, we coordinate with your builder or engineer to make sure drawings and site conditions align.
STAIRCASE OPTIONS
We tailor the inboard profile, tread finish and balustrade specification to the property.
We will talk through what matters most for your project, then issue a specification that is clear, buildable and ready for manufacture.
Design and Manufacture of Inboard String Staircases
All inboard string staircases are manufactured to approved project drawings with close control over dimensions and finish quality.
Before delivery, we check fit, detailing and readiness for installation so site work is efficient and predictable.
Installation and Site Support
We install inboard string staircases across the UK and also support competent site teams where a managed self-install route is preferred.
Our team stays involved through sequencing, setting out and final checks so the staircase is fitted cleanly and safely.
Inboard String Staircases Cost and Timescales
The cost of a inboard string staircase depends on size, geometry, materials, finish detail, balustrade specification and site logistics.
Lead time is confirmed once drawings and specification are approved. We provide a clear programme so your wider project can plan around it.
Why Choose UK Stairs for Inboard String Staircases?
It is a good option when you want a technical staircase that still feels calm and minimal.
You can compare staircase styles on our 3D models page, review completed work in the gallery, or request a quote.
Inboard String Staircases FAQ
Answers to common questions on design, specification, lead time and installation for inboard string staircases.
If you need project-specific advice, use our contact page and we will guide you through the best route.
Why choose inboard over centre spine?
It gives a lighter look than a single box spine while keeping a strong steel-supported staircase structure.
Does inboard work well with glass?
Yes. It works very well with glass when the fixing style is planned early and matched to the layout.
Is an inboard string stair just a centre spine in disguise?
No. It is related in concept but uses different detailing and reads differently visually.
Can you hide LED feeds on an inboard string staircase?
Sometimes, but it is more challenging than many centre spine and cantilever layouts. We confirm what is possible during design.
Is inboard string suitable for very tight stairwells?
It can be, but tight layouts need careful width and walking-line checks. In some cases another style may be better.
Can I choose 12mm or 17.5mm glass on an inboard stair?
Yes. We guide the choice based on stiffness goals, fixing method and handrail detail.
Staircase style selector
CANTILEVER
CENTRE SPINE
INBOARD STRING
CUT STRING
STRAIGHT STRING
