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Can a manual tile cutter cut porcelain?

Updated: October 2026

The box says porcelain and the cutter in the basket says porcelain in a bullet, which is how people end up with a pile of expensive offcuts. Can a manual tile cutter cut porcelain is a maybe: smooth tile inside the cutter’s own thickness can snap, and thick or heavily textured tile usually will not until an offcut says otherwise. The [tile cutter comparison](/hub/cutting-tools/tile-cutter) is the product table. How you score sits on [how to use a manual tile cutter](/hub/cutting-tools/tile-cutter/sub/tile-cutter-how-to-use). When the honest answer is a saw, that class change is on [manual tile cutter or wet saw](/hub/cutting-tools/tile-cutter/sub/tile-cutter-manual-vs-wet-saw). This page stays with the material. Prices and stars are the captured amazon.co.uk figures as of October 2026. Products Compared has not cut a tile in a lab. A purchase through our links can earn a commission at no extra cost to you.

The box says porcelain and the cutter in the basket says porcelain in a bullet, which is how people end up with a pile of expensive offcuts.

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Read the listing, not the word porcelain

The nine listings in this set do not agree with each other. The Vitrex 330 mm cutter names ceramic, terracotta and quarry. Porcelain is not in the bullets. Marshalltown’s TC17 names ceramic, glass and mosaic and says it is not recommended for porcelain, cultured stone, 457 mm tile or 32 mm tile. BLOSTM and TILER claim porcelain up to 12 mm. The ROJOO listings claim ceramic and porcelain from 6–15 mm. Those are four different statements. Buying on the word porcelain, as if every bullet meant the same thing, is the mistake. Marshalltown’s exclusion is the clearest negative claim in the folder. If you want the manufacturer on your side, that listing is not a porcelain cutter, even at 4.4 from 450 reviews. BLOSTM’s 5.0 from four reviews does not make its 12 mm porcelain claim safer. TILER’s 3.9 from 33 reviews does not make 12 mm a tested limit. ROJOO’s 6–15 mm line is still a manufacturer claim on a long bed. The Consumer Rights Act 2015 cares that goods are as described. A listing that excludes porcelain is describing a ceramic and glass tool. A listing that claims porcelain is making a claim you then test. Walls and Floors draws the practical line UK shops keep repeating: smooth, relatively thin porcelain can snap; thicker or textured porcelain usually needs a wet saw. Tile.co.uk says manual cutters can cut porcelain at 15 mm or under in one place and then points porcelain straight cuts at a wet saw in a table on the same site. Quote both. Do not promote either sentence to a law. Your tile is the test, not a blog’s millimetre.

Thickness and texture

UK retail ceramic wall tile often sits around 6–8 mm. Porcelain floor tile is denser and commonly around 8–10 mm, with 20 mm used outdoors and on some floors. Those bands are the ranges retailers repeat. They are not a measurement of the tile in your box. Read the thickness on the carton, then read the cutter’s maximum. Short beds here claim 10–12 mm. Long ROJOO beds claim 6–15 mm. Wickes points delicate porcelain over about 15 mm at a wet saw. Pro Tiler Tools treats over 15 mm as a saw job more often than not. Texture is the second failure. Rubi describes 6 mm and 8 mm wheels as making a fine incision on smooth glaze and polished porcelain. On a riven or wood-effect face the wheel climbs the texture and the score wanders. Pro Tiler Tools lists textured, wood-effect and thick porcelain as poor snap candidates. Montolit, writing about deep texture, describes a face-down score or a repeated incision as a last manual method and still recommends a wet saw. That is the opposite of the smooth-glaze rule, and it is not permission to score a polished 9 mm floor tile twice. A 20 mm outdoor porcelain plank is outside every thickness claim in this amazon.co.uk set. Do not talk yourself into a 15 mm ROJOO bullet for that job. A smooth 9 mm indoor porcelain on a 12 mm bed is the maybe. Two offcuts decide it. If both wander or shatter, the cutter is not going to improve across the rest of the box. Hire or a saw then costs less than a second pack of tile.

What a review can and cannot prove

One UK review on the Marshalltown TC17 reports about 50 cuts of 9 mm porcelain with a double score. Another review on the same listing says porcelain is pushing your luck. Both can be true of different tiles and different wheels. Neither sentence rewrites the manufacturer’s exclusion. If you follow the successful review and the next tile shatters, you are not holding a porcelain cutter. You are holding a ceramic cutter that one person pushed past the text. The same caution applies to the listings that do claim porcelain. Four BLOSTM reviews cannot prove 12 mm. Thirty-three TILER reviews cannot prove it either. Fifty reviews on R1200DXXK include a 40 mm strip on 9.5 mm tile; that is one person’s porcelain-or-ceramic report, not a minimum-width spec and not a 15 mm proof. Reviews that describe a 1.2 m ROJOO on the £109 600 mm page are not evidence about this 600 mm bed at all. If the listing excludes porcelain, treat a successful review as a user report. If the listing claims porcelain, treat the claim as a starting point and cut two offcuts. If the surface is wood-effect, riven, or over the 15 mm band UK retailers keep repeating, start with a wet saw in mind and let a clean offcut talk you back to the rail. Sigma breaker-force figures from trade catalogues do not apply to these ROJOO beds. Do not import them. When the offcuts fail, you already have the next page. A compact wet saw cuts by abrasion instead of fracture. It is wet, noisy, and in this set it does not even print a length. It is still the tool Walls and Floors and Pro Tiler Tools reach for when the snap will not hold. The how-to remains the method for the tiles that do snap. This page is only the decision that some porcelain never should.

Common questions

Will any manual cutter cut porcelain?
No. Marshalltown excludes it. The Vitrex 330 mm cutter does not mention it. BLOSTM, TILER and the ROJOO listings claim it inside their thickness figures. Those claims are not a promise that your tile will snap. Smooth and inside the printed millimetres is the maybe. An offcut is the test.
What about 20 mm porcelain?
It sits outside every thickness claim in this set. Short cutters stop at 10–12 mm. The long ROJOO listings stop at 15 mm as a claim. Wickes and Pro Tiler Tools already point work over about 15 mm at a wet saw. Do not buy a 15 mm bullet for a 20 mm plank.
Can I snap wood-effect or riven porcelain?
Often not. The wheel climbs the texture and the score wanders. Pro Tiler Tools names wood-effect and textured porcelain as poor snap candidates. Montolit still prefers a wet saw after describing last-resort manual tricks. Test an offcut if you insist; plan on a saw if the face is deeply textured.
Why does Marshalltown say not porcelain when a review cut 9 mm porcelain?
The listing is the specification. The review is one user’s 9 mm job with a double score, which is already a non-standard method on smooth glaze. Another review on the same page says porcelain is pushing your luck. Buy Marshalltown for ceramic and glass. Do not treat that one report as a rewritten spec.
Which wheel size is for smooth porcelain?
Rubi describes 6 mm and 8 mm wheels as a fine incision on smooth glaze and polished porcelain. In this set the Vitrex 330 mm listing names a 13 mm wheel and R2823T120 names a 22 mm wheel. Those are listing figures, not a proof that a larger wheel will snap your tile. A blunt wheel of any diameter skates.
Should I score textured porcelain twice?
Not as the default, and not on smooth glaze. Topps Tiles says a second score will most likely break a normal tile. Montolit describes a repeated incision on deep texture as a last manual option and still recommends a wet saw. If you are already in that last option, you are close to changing tool.
When is the honest answer a wet saw?
When the tile is over the printed thickness, deeply textured, or already scrap on two offcuts from a bed that covers the length. Notches and L-cuts are a saw job even when the porcelain would have snapped in a straight line. That is a class change, not a longer rail.

Related pages

Sources

Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures saved for this set on 19 October 2026.

  1. Consumer Rights Act 2015 (retrieved 19 October 2026)
  2. Wickes — how to cut tiles (retrieved 19 October 2026)
  3. Topps Tiles — a basic guide to cutting tiles (retrieved 19 October 2026)
  4. Screwfix — tiling tool buying guide (retrieved 19 October 2026)