Choose the stair system before choosing the colour
Terracotta and porcelain ceramic stair treads can coordinate the walking surface, riser and front edge in a fired-clay finish. The right selection, however, depends on the complete stair build-up—not on a product photo or the word “non-slip.”
LOPO’s broader product range includes clay brick, terracotta panels and louvers. For a stair project, the selected tread profile and its current technical data must be reviewed separately from facade products.
Slip resistance, tread and riser geometry, edge visibility, substrate, fixing, drainage and applicable regulations must be confirmed for the actual project. A surface texture or groove pattern alone does not demonstrate compliant performance.
Practical benefits—with project-specific limits
The original 2017 article introduced LOPO stair tiles as coordinated tread and riser components. Those design benefits remain useful, but performance claims should be tied to the exact product, finish, installation and test evidence.
Coordinated appearance
Treads, front edges and risers can be reviewed as one visual system. Natural clay tones, glazed colours or project-specific finishes should be approved from physical samples because fired products can show expected variation.
Formed surface detail
Linear grooves or other textures may be formed with the ceramic profile. They can help define the edge and influence appearance, but they are not a substitute for the required slip-resistance test.
Routine maintenance
A suitable fired ceramic surface can support regular cleaning. The cleaning method, stain exposure, grout or joint design and chemical compatibility still need to match the selected finish and the building’s maintenance plan.
Define the conditions before reviewing slip data
Slip performance is affected by the surface finish, contaminants, footwear, slope, cleaning regime and whether the stair is normally dry, occasionally wet or exposed outdoors. Ask for a current report for the exact finish being supplied and confirm that its test method is accepted for the project.
- State whether the stair is interior or exterior and identify rain, tracked water, grease, dust or other foreseeable contaminants.
- Identify the relevant local building, accessibility and workplace requirements with the architect, code consultant or authority having jurisdiction.
- Do not compare values from different slip-test methods as though they were interchangeable, and do not apply a universal pass number without project review.
- Confirm how cleaning and wear may affect the surface over time, especially at entrances and high-traffic circulation routes.
Coordinate the nosing, tread and riser
The front edge must be visible, consistently aligned and compatible with the required stair geometry. Review the nosing radius or profile, any projection, edge texture, colour contrast, lighting and the relationship between the tread and riser.
Provide the manufacturer with the architectural stair section—not only nominal tile dimensions. Finished tread depth and riser height must remain consistent after allowance for the ceramic piece, adhesive or mortar bed, joints and construction tolerances.
Homes, villas, schools, public spaces and facilities serving older people may all use ceramic finishes when properly specified. The application name alone does not establish that a particular tread is suitable; traffic, accessibility, evacuation and maintenance requirements must be checked.
Treat the tread as part of an assembled stair
Ceramic units do not work independently of the structure below them. The designer, manufacturer and installer should resolve the substrate, fixing method, joints and exposure before production.
Substrate and build-up
Identify concrete, masonry, steel or another supporting construction and document its flatness, movement and load path. Confirm the compatible bedding or adhesive system with the responsible specification team.
Size and tolerances
Supply finished tread depth, riser height, stair width, edge profile, piece length, joint layout and required tolerances. Review production and handling limits before assuming one-piece coverage of a long stair.
Exposure and movement
Exterior or wet installations require coordinated drainage, waterproofing, movement accommodation and protection from trapped water. Climate exposure and any required durability data must be checked for the selected model.
Anchorage and installation must follow an approved project detail and the recommendations of the relevant system suppliers. This guide does not prescribe a universal adhesive, mortar, mechanical fixing or joint width.
A six-point stair tread selection checklist
Sharing the following information early makes sampling and technical review more useful.
| Decision | Information to provide | What to confirm |
|---|---|---|
| Use conditions | Interior or exterior, traffic level, footwear, wetting and contaminants | Suitable finish, cleaning plan and project-specific slip criteria |
| Codes and tests | Project country, occupancy, accessibility and authority requirements | Accepted test method, exact tested finish and current report |
| Stair geometry | Dimensioned plan, section, tread depth, riser height and nosing detail | Finished geometry, edge visibility, joints and tolerances |
| Substrate | Supporting construction, build-up, movement and environmental exposure | Compatible bedding or fixing, waterproofing, drainage and movement details |
| Product selection | Colour, surface, profile, dimensions, quantity and schedule | Production feasibility, physical sample, acceptable variation and packing |
| Site quality | Installer responsibility, mock-up location and protection sequence | Approved mock-up, alignment, curing, cleaning and spare-piece allowance |
View the complete stair images
These two photographs appeared in the original article and are retained at their full, uncropped proportions. They are visual references only; confirm the current product, surface and technical specification for a new project.
Send the stair drawing, exposure and finish reference
LOPO can review available porcelain ceramic stair tread profiles against your dimensions and visual intent. Final suitability, test requirements, substrate design, anchorage and code compliance remain subject to the project team’s approval.
Email: roger@lopoterracotta.com