What size tile cutter do I need?
Updated: October 2026
You have a box of tiles and a cutter that looks long enough until you measure the longest side you will actually score. What size tile cutter do I need is a measurement question, not a star-rating question. The [tile cutter comparison](/hub/cutting-tools/tile-cutter) lists the amazon.co.uk models and prices. This page is the order you work through before those stars: straight length, then the diagonal if the layout is at 45°, then the thickness claim. 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.
You have a box of tiles and a cutter that looks long enough until you measure the longest side you will actually score. What size tile cutter do I need is a measurement question, not a star-rating question.
You have a box of tiles and a cutter that looks long enough until you measure the longest side you will actually score. What size tile cutter do I need is a measurement question, not a star-rating question. The tile cutter comparison lists the amazon.co.uk models and prices. This page is the order you work through before those stars: straight length, then the diagonal if the layout is at 45°, then the thickness claim. 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.
Our top picks
| Badge | Product | Straight length | Diagonal stated | Thickness claim | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Marshalltown Marshalltown TC17 snap tile cutter | 432 mm | 45° to 305 mm square | 12 mm | 9.0 | about £35.26 | View offer |
| Alternative |  ROJOO ROJOO 600 mm manual tile cutter | 600 mm | Not stated | 6–15 mm | 8.2 | about £109.00 | View offer |
| Best value |  Vitrex Vitrex 330 mm manual tile cutter | 330 mm | Not stated | 10 mm | 7.6 | about £19.00 | View offer |
On this page
Measure the cut, not the room
A manual rail cutter only scores a straight line as long as its bed. Screwfix’s tiling-tool guide puts that first: the bed must cover the tile you are cutting, not the average tile in the room. Measure the longest side you will score, then buy a cutter whose listed straight length is at least that figure. A bathroom with 200 mm metro tiles on the splashback and 600 mm porcelain on the floor needs two different beds, or one bed that covers 600 mm and a second plan for the cuts a rail cannot start.
In this amazon.co.uk set the straight lengths are 330 mm on the Vitrex manual cutter, 430 mm on BLOSTM and TILER, 432 mm on the Marshalltown TC17, 600 mm on the ROJOO double-rail listing, and 1200 mm on the two ROJOO listings whose packages match a 48 inch bed. The Vitrex Torque Master wet saw does not print a cutting length. A 330 mm cutter will cover a standard metro tile. It will not cover a 600 × 600 mm floor tile. Buying on the 3.8 from 171 reviews on that Vitrex, or on the 4.4 from 450 on the Marshalltown, does not change the millimetres.
The 330–432 mm beds are the wall tools. The 600 mm ROJOO is the first listing here that can take a 600 mm floor tile in a straight cut. The 1200 mm beds are for planks and large-format work, and they weigh 17 kg and 17.4 kg on the listings.
Diagonal capacity is a second number
A 600 mm cutter is not a 600 mm diagonal cutter. A 600 × 600 mm tile is about 849 mm corner to corner. BuildWiz uses that same rule of thumb, about 850 mm, when it warns shoppers not to treat a 600 mm bed as permission to cut a 600 mm square at 45°. If the floor is laid on the diagonal, the bed has to cover that longer line. A 600 mm ROJOO will snap the tile in a straight cut and will not take the same tile corner to corner.
Marshalltown is the only listing in this set that prints a diagonal in millimetres: 45° on tile up to 305 × 305 mm. BLOSTM claims a diagonal cut without giving a length. The long ROJOO listings do not print a diagonal figure. A trade example outside this basket, Battipav’s Basic Plus 60, states 600 mm straight and 420 × 420 mm on the diagonal at 12 mm. That is not an amazon.co.uk ASIN here. It only shows that the two numbers are different.
If your layout is at 45° on 600 mm tile, a 600 mm bed is the wrong tool for that cut. You change the layout, move to a 1200 mm rail and still check the live diagonal claim, or you take the cut to a wet saw. That class change is on manual tile cutter or wet saw.
Thickness is a claim
Short cutters in this set state about 10–12 mm. The Vitrex 330 mm listing caps thickness at 10 mm. BLOSTM, Marshalltown and TILER state 12 mm. The long ROJOO listings claim 6–15 mm. Wickes treats ceramic under about 15 mm as a typical manual-cutter job and points delicate porcelain over 15 mm at a wet saw. Pro Tiler Tools treats tiles over about 15 mm as a saw job more often than not. That split is retailer guidance, not a statute, and it is not a test of your box.
A 10 mm ceramic wall tile on a 12 mm cutter is inside the printed range. A 20 mm outdoor porcelain plank is not. If the tile’s thickness is missing from the box, do not guess it from the room. Thickness also fails when the surface is riven or wood-effect: the wheel climbs and the score wanders. That material decision belongs on cutting porcelain with a manual tile cutter. If the listing’s thickness is below the tile, or the tile is over the 15 mm band UK retailers keep repeating, stop shopping for a longer rail.
What to do with a conflicting listing
One listing in this set must not be bought for a stated length. The ROJOO titled 32/48 inch, ASIN B0DZGZ7NBS, prints 32 inch in the size field and 48 inch / 1200 mm in the bullets. The package is 105.66 cm long. The two clear 48 inch ROJOO cutters ship in packages about 148–150 cm. The shorter box is closer to a 32 inch machine than to a 1200 mm bed. Across 60 amazon.co.uk reviews the line is 3.7. Treat that length as unresolved.
A second problem sits on the £109 ROJOO 600 mm listing. Several reviews describe a 1.2 m cutter and a price around £200. The title, size field and bullets say 600 mm and 6–15 mm. If you need 600 mm, read the live size field and ignore review text that describes a longer machine. If you need 1200 mm, use R1200DXXK or R2823T120, whose packages match a 48 inch bed.
Those 1200 mm cutters are listed at 17 kg and 17.4 kg. That is a van-and-two-people weight, not a cupboard tool. If you only have four or five large cuts, hire can be the size decision. Tedbar’s published tile-saw hire lines sit at £30 and £32 for a day or a weekend on the two machines they show. Those hired tools are not the ASINs in this folder. Do not promote the conflicted listing to a confirmed 1200 mm cutter because the bullets sound confident.
Common questions
What cutter length do I need for 600 × 600 mm floor tile?
A straight cut on a 600 mm tile needs a bed of at least 600 mm. In this set that starts at the ROJOO 600 mm listing. The 330–432 mm cutters will not cover that side. A 600 × 600 mm tile on the diagonal is about 849 mm, so the 600 mm bed is still too short for a 45° cut.
Can a 600 mm cutter make a diagonal cut on a 600 mm tile?
No. Corner to corner is longer than the factory edge. About 849 mm is the rule of thumb for a 600 mm square. A 600 mm bed can snap the tile in a straight line and cannot take that diagonal unless the listing prints a longer diagonal figure, which this 600 mm ROJOO does not.
Is 430 mm enough for metro wall tiles?
Yes for a typical 200 × 100 mm metro tile, and for many 300 mm wall tiles. BLOSTM and TILER list 430 mm; Marshalltown lists 432 mm. The Vitrex 330 mm bed is also enough for metro work. None of those lengths is enough for a 600 mm floor tile.
What if the title says 32 inch and the bullets say 1200 mm?
Treat the length as unsettled. On B0DZGZ7NBS the size field says 32 inch, the bullets say 1200 mm, and the package is 105.66 cm. That is not a confirmed 1200 mm cutter. Check the live listing or move to R1200DXXK or R2823T120, whose packages match a 48 inch bed.
Does thickness on the box mean every tile of that thickness will snap?
No. 10–15 mm in this set is a manufacturer claim. Wickes and Pro Tiler Tools still point thick or delicate porcelain at a wet saw. Texture, a worn wheel and a timid snap all break tiles that sat inside the printed range. Test two offcuts before you open the good box.
When does the size question turn into buying a wet saw instead?
When you need a notch, a curve, a mitre, or a cut the rail cannot start in the middle of the tile. It also turns when the first offcuts shatter on a bed that already covers the length. Screwfix says a manual cutter cannot start in the middle. That is a class change, not a longer rail.
How heavy is a 1200 mm manual cutter in this set?
The two listings whose packages match a 48 inch bed print 17 kg and 17.4 kg. The conflicted 32/48 inch listing prints 13.9 kg. Those weights are for a bench or a van, not for a high shelf. If you only need a handful of long cuts, hire may be the lighter option.
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.
- HSE EH40/2005 — workplace exposure limits (retrieved 19 October 2026)
- HSE — silicosis (retrieved 19 October 2026)
- HSE — cutting roofing tiles (retrieved 19 October 2026)
- PUWER 1998 (retrieved 19 October 2026)
- Topps Tiles — a basic guide to cutting tiles (retrieved 19 October 2026)
- Screwfix — tiling tool buying guide (retrieved 19 October 2026)
- Wickes — how to cut tiles (retrieved 19 October 2026)
- Vitrex compact tile saw manual (retrieved 19 October 2026)