The nosing does the work
Going up a flight, the ball of the foot lands on the front 50 millimetres of each tread. Coming down — which is when falls happen — the heel strikes that same edge. That narrow strip takes essentially all of the wear and all of the safety burden on a staircase, and it is where a tiled stair either works or fails.
Three things have to be right. The edge must have grip when wet, which means a grooved anti-slip profile rated R11 on any external or public stair. It must be visually distinct, so the user can see where each step ends — a contrasting nosing strip or a tonal change, which matters enormously for older users and is a requirement in most accessibility codes. And it must not chip, which is why full body porcelain is specified: when a nosing does take a knock, the exposed material is the same colour as the surface and the damage is invisible.
A glazed tile fails on that last point. A chipped glaze on a stair nosing shows as a bright white mark at exactly eye level, on every step, and there is no way to repair it.
Measuring and ordering a staircase
- Measure the going. The horizontal depth of each step from nosing to riser. A 300 mm tread suits a going of 290 to 305 mm; deeper stairs need the 330 mm tread.
- Measure the rise. The vertical height of each step. It must be at or under 200 mm for the standard riser tile; taller risers need cutting or a custom size.
- Measure the width. A 1200 mm tile covers most domestic flights in one piece. Wider stairs take two pieces with a centred joint.
- Count the steps. Include the top step if it is tiled as a tread rather than absorbed into the landing.
- Choose the nosing. Grooved anti-slip for external and public stairs; bullnose for interior domestic flights.
- Add ten per cent. For cutting, breakage and future repairs — a top-up order later will not shade-match.
- Specify the landing. Usually a field tile from the same range so the whole stairwell reads as one material.
Common mistakes
- Cutting field tiles instead of buying a set — the cut edge exposes the pale body as a light line along every step, and the waste makes it no cheaper.
- Using a polished tile — a gloss stair is dangerous, indoors as well as out.
- Ordering treads and risers separately — they will not shade-match, and the mismatch is at eye level.
- No visual contrast at the nosing — a uniform flight is hard to read, particularly descending in poor light.
- Forgetting the top step — it is easily missed in the count and always noticed when it is short.
- Fitting risers after treads — risers go on first, then the tread overlaps the top of the riser, so no joint faces upward to collect water.
Frequently asked questions
What tile should be used on a staircase?
A matched full body porcelain tread and riser set — 300x1200 mm tread with a 200x1200 mm riser — with a grooved anti-slip nosing on external or public stairs and a bullnose on interior domestic flights.
Can I use ordinary floor tiles on stairs?
They can be cut down, but it is a false economy. Each tread needs two cuts and an edge ground, the waste is high, and on a glazed tile the cut edge shows the pale body as a light line along the front of every step. A purpose-made set arrives at the right depth with the nosing already formed.
Which goes on first, the tread or the riser?
The riser. The tread then overlaps the top edge of the riser, so there is no upward-facing joint to collect water and dirt, and the nosing line stays clean.
What slip rating do stair treads need?
R11 with a grooved nosing for external stairs and any staircase in a public or commercial building. R10 is acceptable for an interior domestic flight in a dry area.
How do I work out how many tiles I need?
One tread and one riser per step, plus the landing area in field tiles, plus ten per cent. Tell us the number of steps, the going, the rise and the stair width and we will calculate the order for you.
What is the standard width of a staircase?
900 mm clear between handrails is the domestic minimum in most codes, 1000 to 1200 mm for a comfortable main stair, and 1200 mm or more for a commercial or escape stair. Tread and riser tiles are sized to suit: our step and riser sets are supplied in 300 x 1200 mm to cover a 1200 mm flight in one piece.
Can the staircase wall be tiled as well as the treads?
Yes, and a tiled staircase wall is a common specification in apartment blocks and hotels — it takes the scuffing that a painted wall cannot and it cleans. Use a wall tile rather than a floor tile, and stop it at a deliberate line such as handrail height rather than partway up.
Get a staircase tile quotation
Send us the number of flights, the going, the rise and the stair width. We will work out the set and quote it.
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- Step & Riser Tiles Guide
- GVT vs PGVT
- Tile Size Guide
- Laminate Guide
- Porcelain vs Ceramic Tiles
- What Are Vitrified Tiles
- Types of Tiles
- Tile Thickness Guide
- Glossy vs Matte Tiles
- How to Clean Tile Floors
- How to Remove Tile Stains
- How to Fix Cracked Tiles
- How to Clean Marble Floors
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