Mono Stringer Stairs
Bespoke staircase design and manufacturing for residential and commercial projects across the United States, combining precision engineering, premium materials, and custom-built solutions.
Create an open and modern staircase designed around your property, not adapted from a standard kit. CELN designs and manufactures bespoke mono stringer stairs using precision-engineered steel, premium hardwood, and detailed CAD technology.
Choose from customizable staircase systems through our online shop for instant pricing, or contact CELN for a fully bespoke residential or commercial design.
Open Up Your Space With a Custom Staircase
Mono stringer stairs use one central steel beam to support the treads. This removes the bulky side supports found on traditional stringer stairs, allowing more light to pass through the staircase and keeping views across the room open.
The streamlined structure works well in entrance halls, open-plan interiors, offices, hospitality spaces, and custom homes where the staircase needs to become part of the architecture.
Key benefits include:
Custom dimensions for your property
An open design that improves light flow
Premium hardwood and steel construction
Residential and commercial configurations
Custom tread, railing, and finish options
Nationwide delivery across the United States
A Complete Mono Stringer Stair System
A successful floating staircase depends on more than the central beam. The stringer, treads, supports, railings, landings, and connection points must be developed as one coordinated stair system.
CELN uses CAD technology to plan these details before manufacturing begins. Every staircase is built around the floor-to-floor height, available space, structural conditions, and design goals of the project.
Precision Design
Accurate CAD models help coordinate stair geometry, tread positions, connection points, and railing details.
Premium Materials
Fabricated steel is paired with carefully selected hardwoods and architectural railing options.
Custom Manufacturing
CELN creates custom-built staircases rather than mass-produced solutions with limited dimensions or finishes.
Nationwide Supply
Completed staircase systems can be delivered to residential and commercial projects throughout the United States.
Choose the Right Route for Your Project
CELN offers two straightforward ways to begin.
Customize Online
Use the online shop to explore suitable staircase configurations, select available options, and view instant pricing.
This route is ideal for projects with straightforward dimensions and established design requirements.
Request a Bespoke Design
Contact CELN when the staircase includes unusual dimensions, custom landings, specialist railings, complex geometry, or a specific architectural concept.
Our team can review your plans and provide a tailored quotation, once the required project information has been received.
Design the Staircase Around Your Interior
Stair Layouts
Available configurations may include:
Straight flights
L-shaped stairs
U-shaped and switchback stairs
Intermediate landings
Multilevel designs
Project-specific layouts
Railing Options
Options may include:
Glass panels
Steel balusters
Metal posts
Timber handrails
Steel handrails
Mixed wood, glass, and metal systems
Hardwood Treads
Possible wood choices may include:
White oak
Walnut
Maple
Red oak
Ash
Other suitable hardwoods
Steel Finishes
Mono stringers can be finished in a range of powder-coated colors to complement the surrounding interior. Natural, stained, or prefinished timber options can also be considered for the treads.
Available materials and configurations depend on the project dimensions, design requirements, and intended use.
From Initial Design to Nationwide Delivery
CELN keeps the process clear from the first inquiry through to manufacturing and delivery.
1. Share Your Project Information
Send available drawings, measurements, floor-to-floor height, project location, and design references.
2. Confirm the Specification
Choose the staircase layout, tread material, steel finish, railing style, and other important details.
3. Review the CAD Design
The staircase is developed using CAD technology so the geometry and manufacturing information can be checked before production.
4. Manufacture the Staircase
Once approved, the staircase is custom-built using the agreed steel, hardwood, and railing specifications.
5. Arrange Delivery
The completed system is prepared for delivery to the project location anywhere in the United States.
Built to Address the Details That Matter
Clear, Project-Specific Pricing
CELN’s online shop provides instant pricing for many configurable stair systems. Bespoke designs are quoted according to their dimensions, layout, materials, railing, finish, and delivery requirements.
A Stable, Coordinated Structure
The central stringer is only one part of the staircase. Tread supports, connections, railings, landings, and surrounding attachment points are planned together to create a complete system that feels secure underfoot.
Early or Mid-Project Support
Early involvement gives CELN more control over floor openings, landing supports, finished floor levels, and connection points. Projects already under construction can also be reviewed using the available plans and measurements.
Customers testimonials
What our customers are saying about us.
"We had an excellent experience from start to finish. From the initial enquiry to the installation and unveiling of the staircase, the team demonstrated professionalism, expertise, and exceptional attention to detail at every stage."
"CELN was a pleasure to work with from start to finish. We kicked things off with a video call they walked me through the measurements double checked everything, and started fabrication right away The quality is excellent. The treads are solid oak and the whole staircase feels premium and well built"
"Beautiful and creative staircases"

Why Choose CELN?
CELN combines specialist staircase knowledge with precision design and custom manufacturing.
Clients choose CELN for:
Fully bespoke staircase solutions
CAD-based design and coordination
Premium hardwood and steel construction
Custom-built rather than mass-produced systems
Residential and commercial expertise
A wide range of modern staircase styles
Nationwide delivery
Instant online pricing for suitable designs
Fast turnaround on custom quotations
The result is a staircase designed to fit the property, support the architectural concept, and create lasting visual impact.
Frequently asked questions
They use a single central structural beam to support the stair treads. Positioning the support beneath the center removes the need for large side stringers and creates the appearance of floating stairs.
Yes. CELN offers a range of hardwood treads, steel finishes, railing styles, and layout options. The final selection will depend on the staircase dimensions, design requirements, and intended application.
Yes. They can be designed for offices, hospitality interiors, retail spaces, multifamily developments, and other commercial environments. The project should be reviewed according to its intended use and specific requirements.
Many staircase configurations can be priced through CELN’s online customization tool. Bespoke designs with unusual dimensions, specialist railings, or custom landings require a tailored quote.
CELN aims to provide custom quotations within 24 hours after receiving the necessary project details. Complex projects may require additional review before an accurate price can be confirmed.
Send any available plans, the floor-to-floor height, stair opening dimensions, preferred layout, material choices, project ZIP code, and reference images. CELN will let you know if further information is needed.
Yes. CELN can supply staircase systems to residential and commercial projects throughout the United States. Delivery requirements are confirmed during the quotation and ordering process.
Start Your Mono Stringer Stairs Project
Create a staircase that fits your space, complements the architecture, and becomes a lasting feature of the property.
Use CELN’s online tool to customize a staircase and view instant pricing, or contact us to discuss a fully bespoke design.