Closed String Staircases
A traditionally crafted closed string staircase is a timeless choice for homes where clean lines, quality materials and considered detailing matter. With the treads and risers enclosed by solid timber strings, this staircase style creates a neat, defined appearance that works beautifully in both traditional and contemporary interiors.
At Input Joinery, we design and manufacture bespoke timber staircases to suit the proportions, layout and architectural character of your home. From the choice of timber and finish to the balustrade and finer details, each staircase can be tailored to your requirements.
What Is a Closed String Staircase?
A closed string staircase features solid supporting strings that conceal the ends of the treads and risers. Unlike a cut string staircase, where the stepped profile of the treads is visible from the side, a closed string design creates a continuous, enclosed line along the flight of stairs.
This understated construction makes closed string staircases a versatile choice for a wide range of interiors. The enclosed sides create a tidy finish, while the choice of timber, handrail, balustrade and decorative details allows the design to be adapted to suit your home.
Whether you are renovating a period property, building a new home or updating an existing hallway, a bespoke closed string staircase can be designed around your space and preferred style.
Key Features & Construction
- Enclosed timber strings: Conceal tread and riser ends for a clean finish.
- Timber options: Choose materials to suit your design and budget.
- Balustrade options: Choose timber spindles, metal details or glass panels.
- Decorative details: Add bullnose or curtail treads where suitable.
- Made-to-measure design: Tailored to your space and requirements.




Why Choose a Closed String Staircase?
A closed string staircase offers several advantages for residential interiors.
- A timeless appearance: The enclosed string creates a simple, defined profile that suits both traditional homes and more contemporary spaces.
- A coordinated finish: The concealed tread and riser ends create a neat appearance that works well with a range of interior styles.
- Flexible design options: Timber choices, balustrades, handrails and finishing details can be selected to suit the property.
- Made to suit your home: A bespoke design allows the staircase to be developed around the available space and the requirements of the project.
- Craftsmanship built around the details: Careful consideration of proportions, materials and finishes helps ensure the staircase sits comfortably within the wider interior.


Bespoke Timber Staircases by Input Joinery
At Input Joinery, we combine traditional joinery skills with modern manufacturing techniques to create bespoke timber staircases for individual homes and architectural projects.
Based in Weyhill, near Andover, Hampshire, our team works with customers to understand their requirements and develop staircase designs around the space, layout and intended finish. We can discuss the available options, from string construction and timber selection to balustrades, handrails and decorative details.
Quality Timber
Explore our exquisite range of timber products designed to meet the standards of quality and durability. Perfect for enhancing the aesthetic and functionality of your spaces.
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