Applications
Stone Staircases
A stone staircase transforms an ordinary hallway into a grand entrance — sculptural, enduring, and unmistakably luxurious. From sweeping marble flights to dramatic granite spirals, stone stairs make a statement no other material can match.
Inspiration
Beautiful Design Styles
From dramatic dark spirals to bright contemporary flights, a stone staircase becomes the defining architectural feature of your home. Here are three design directions we craft for homeowners across Portsmouth, Hampshire and the surrounding area.
Dramatic Dark Spiral
Polished black granite treads with subtle silver veining curve upward through a double-height stairwell. Recessed LED strips beneath each step cast warm light against the dark plaster walls, creating a moody, sculptural centrepiece that draws the eye the moment you walk through the front door.
Bright Marble Flight
Full calacatta marble treads and risers flow seamlessly up a wide straight staircase, their dramatic grey veining uninterrupted from base to landing. A frameless glass balustrade and overhead pendant keep the space feeling light and airy — classic elegance reimagined for contemporary living.
Floating Cantilevered Treads
Individual sintered stone treads extend from the wall without visible support, creating a gravity-defying effect that feels impossibly sleek. The stone's natural texture and depth contrast with polished plaster walls, while hidden structural steel handles the engineering beneath the surface.
Inspiration
Beautiful Design Styles
From dramatic dark spirals to bright contemporary flights, a stone staircase becomes the defining architectural feature of your home. Here are three design directions we craft for homeowners across Portsmouth, Hampshire and the surrounding area.
Dramatic Dark Spiral
Polished black granite treads with subtle silver veining curve upward through a double-height stairwell. Recessed LED strips beneath each step cast warm light against the dark plaster walls, creating a moody, sculptural centrepiece that draws the eye the moment you walk through the front door.
Bright Marble Flight
Full calacatta marble treads and risers flow seamlessly up a wide straight staircase, their dramatic grey veining uninterrupted from base to landing. A frameless glass balustrade and overhead pendant keep the space feeling light and airy — classic elegance reimagined for contemporary living.
Floating Cantilevered Treads
Individual sintered stone treads extend from the wall without visible support, creating a gravity-defying effect that feels impossibly sleek. The stone's natural texture and depth contrast with polished plaster walls, while hidden structural steel handles the engineering beneath the surface.
Dramatic Dark Spiral
Polished black granite treads with subtle silver veining curve upward through a double-height stairwell. Recessed LED strips beneath each step cast warm light against the dark plaster walls, creating a moody, sculptural centrepiece that draws the eye the moment you walk through the front door.
Bright Marble Flight
Floating Cantilevered Treads
Explore
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Guide
Your Guide to Stone Staircases
Why Choose a Stone Staircase?
A staircase is one of the first things anyone sees when they step through your front door. It’s not a surface hidden behind cupboard doors or tucked into a corner — it’s architecture, front and centre. And when that architecture is crafted from stone, the effect is transformative.
Stone stairs have been a hallmark of grand buildings for centuries, from palazzo marble flights to Edinburgh granite tenements. What’s changed is how we use them in modern homes. Contemporary stone staircases are lighter, more sculptural, and more varied in material than ever before. Floating treads cantilevered from a wall. Spirals carved from a single stone type, each tread precision-cut by CNC. Full stone flights with matching risers that flow from hallway to landing like liquid rock.
At In2stone, we’ve been crafting bespoke stone features for homes across Portsmouth, Hampshire and the surrounding area for over 25 years. Stone staircases are among the most rewarding projects we work on — they’re structurally demanding, visually dramatic, and genuinely unique to each home. No two are alike.
Choosing the Right Stone
Granite — The Natural Choice for Heavy Traffic
If your staircase is going to be used by a family every day — children, dogs, bags, shoes — granite is the strongest option available. Its exceptional hardness means it resists scratching, chipping, and wear in ways that softer stones simply can’t match. Dark granites like Absolute Black or Star Galaxy deliver a moody, contemporary feel, while lighter shades like Kashmir White bring warmth and brightness to a hallway.
Best for: Family homes, high-traffic staircases, and anyone who values durability above all else.
Marble — Timeless Elegance
There’s a reason marble staircases have defined grand architecture for millennia. The depth of veining, the warmth of touch, the way light plays across a polished surface — marble creates an emotional response that no other material can replicate. Calacatta and Carrara are the classic choices, but darker marbles like Nero Marquina offer a striking modern alternative.
Marble is softer than granite and will develop a gentle patina over time. Many homeowners find this ageing process beautiful — it gives the stone character and warmth. For those who prefer a pristine finish, we recommend sealing the surface and using marble on lower-traffic staircases or in combination with a runner.
Best for: Grand entrances, period homes, feature staircases, and homeowners who appreciate the living quality of natural stone.
Sintered Stone — Engineered Precision
Brands like Dekton and Neolith produce ultra-compact surfaces that combine the beauty of natural stone with engineered durability. They’re virtually scratch-proof, stain-proof, and UV-resistant — making them an excellent choice for staircases that receive direct sunlight through landing windows.
Sintered stone comes in large formats that suit contemporary floating tread designs. The material is consistent in thickness and appearance, which matters when you’re creating a series of identical cantilevered steps that need to look perfectly uniform.
Best for: Contemporary floating designs, south-facing staircases, and projects where absolute consistency between treads matters.
Porcelain — Design Versatility
Large-format porcelain slabs offer an extraordinary range of finishes — from marble reproductions to concrete effects and raw stone textures — at a competitive price point. Thinner formats keep weight manageable, which is particularly important for floating tread designs where the structural steel needs to handle the load.
Best for: Budget-conscious projects, lightweight floating designs, and homeowners who want a wide range of aesthetic options.
Design Possibilities
Floating Cantilevered Treads
Individual stone treads anchored into the wall with hidden structural steel, creating the illusion that each step hovers in mid-air. This is the most architecturally dramatic staircase design — minimal, sculptural, and unmistakably modern. The key is precision: every tread must be cut to identical dimensions and installed at exactly the right angle.
Full Stone Flights
Treads and risers all in stone, with each piece bookmatched or grain-matched to create a continuous flow of material from bottom to top. This classic approach delivers the full impact of natural stone — you see the veining, the colour variation, the depth — across the entire staircase.
Spiral and Curved Staircases
Curved stone stairs are among the most technically challenging and visually rewarding projects in stonemasonry. Each tread is individually templated and cut to follow the precise curve of the stairwell. The result is a truly sculptural piece — a functional work of art that transforms the entire character of a hallway.
Stone Cladding over Existing Stairs
If a complete rebuild isn’t practical, we can clad existing timber or concrete staircases with stone treads and risers. This is a cost-effective route to a stone staircase that still delivers the full visual impact. The existing structure provides the support; the stone provides the beauty.
The Craftsmanship Behind Stone Stairs
Precision Templating
Every stone staircase starts with hand templating. Unlike flat worktops, stairs involve multiple planes, angles, and junctions that must align perfectly across every tread and riser. Our templaters measure each step individually, accounting for the inevitable variations that exist in even the most carefully built stairwell.
CNC Cutting and Hand Finishing
Treads are cut on our CNC machine for dimensional accuracy, then hand-finished for the edges and nosing profiles. Bullnose, pencil round, square — the edge profile subtly changes the character of the entire staircase, and we’ll help you choose the right one.
Structural Collaboration
For cantilevered and floating designs, we work closely with your builder or structural engineer to ensure the wall or support structure can handle the loads. Stone is heavy, and the fixings need to be exactly right. This is one of the areas where our experience with bespoke masonry really matters — we understand the engineering as well as the aesthetics.
Our Staircase Process
From first conversation to finished staircase, you’ll deal with the same small team throughout:
- Site visit and consultation — We assess the existing structure, discuss materials and design, and take initial measurements
- Free quote — Honest, transparent pricing with no hidden costs. The quote is the price
- Hand templating — Precision measurements of every tread, riser, and landing once the structure is prepared
- In-house fabrication — Cut, polished, and finished in our own workshop by the same team
- Expert installation — Stone fitted, joints finished, and your staircase transformed
Frequently Asked
Stone Staircases Questions
What types of stone staircase projects does In2stone undertake?
Which stone materials are best suited for staircase treads?
How do you ensure stone staircase treads are not slippery?
Can stone be used to clad an existing timber or concrete staircase?
What edge profiles are available for staircase treads?
How long does a stone staircase installation typically take?
Does a stone staircase require structural reinforcement?
Can you match staircase stone to existing flooring or worktops in the home?
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Interior Stone Cladding & Feature Walls
Few things transform a room quite like a wall of natural stone. Whether it's the translucent glow of backlit onyx behind a home bar, the mirrored drama of book-matched marble flanking a fireplace, or the quietly confident texture of dark ceramic panels in a hallway — stone cladding turns an ordinary wall into the centrepiece of your home.
Stone Window Sills
Stone window sills bring a quiet sense of permanence to any room. Whether you're matching them to existing worktops or introducing stone as a standalone feature, a well-crafted sill transforms an overlooked detail into something genuinely beautiful.
What Our Customers Say
"Excellent Service and Beautiful Results - Highly Recommended! I recently had In2stone install new quartz worktops in my kitchen, and I couldn't be happier with the results. From start to finish, the experience was completely stress-free. The team was not only competitively priced but also incredibly friendly and professional throughout the entire process. They handled everything seamlessly - removing the existing sink, hob, and old laminate worktops before fitting the new quartz surfaces. The finished worktops are absolutely beautiful and have transformed my kitchen into a modern, minimalist space that I love spending time in. The quality of workmanship is outstanding, and the attention to detail really shows. I'm a very satisfied customer and would highly recommend In2stone to anyone considering new worktops. Well done to the entire team - you've exceeded my expectations!"— Ashley ChapmanGoogle
"I've had two kitchen worktops from In2stone, both times the service and quality of the product has been great. Templating and fitting were also seamless. Definite recommend."— Victoria BrindGoogle
"So pleased with my beautiful new worktops. In2stone were brilliant. From helping me to choose from their wide selection in the showroom, through the whole quote, template and installation process the service was excellent. I still have some decorating to do to complete the kitchen makeover, but the new worktops look fabulous. Highly recommend the team at In2stone."— Shirley MoremanGoogle
Why Choose Us
Why In2stone
Real Stonemasons
Same team from quote to installation. No subcontractors, no call centres — just craftsmen who care about every cut.
"The difference between a stonemason and just suppliers of worktops is huge."
Robert Squire
The Quote Is the Price
No hidden costs, no surprises. We consistently beat competitor quotes — even online discounters decline to match us.
"Beat 6 other companies by a mile. Even an online company that claims to beat any quote declined to."
Dean Fitzpatrick
Customers Come Back
10-year relationships. Families who've had three kitchens done with us. That kind of trust isn't bought — it's earned.
"10 years ago had Ian and Kev do our kitchen… our daughter also used them… today had the team do our new place. 11/10."
Martine
Get In Touch
Let's talk about your new stone staircases.
Whether you know exactly what you want or you're just starting to explore, we're here to help. Call the showroom, visit us in person, or request a quote — there's no hard sell, just honest advice from people who love what they do.
Open Monday–Friday 10am–4pm, Saturday 10am–2pm.
