How To Cut 20mm Porcelain Tiles

Tackling 20 mm porcelain tiles can feel daunting as they’re dense, hard-wearing, and prone to chipping. But with the right tools, techniques, and patience, you can achieve clean, professional results. This guide shows you how to cut 20mm porcelain tiles, whether dry or wet, the right 20mm porcelain blades to use, and how to lay 20 mm porcelain tiles perfectly.

Preparation: Can You Use a Tile Cutter on 20 mm Porcelain?

Can you cut 20 mm porcelain tiles with a tile cutter? The answer depends:

• Manual tile cutters (beam score and snap) are usually rated only up to 12‑15 mm; most can’t handle 20 mm thickness.

• You can try to cut 20 mm porcelain tiles with a heavy-duty cutter, but you’ll get the best results with a sturdy dry or wet tile saw.

Check out on guide on How To Use A Ceramic Tile Cutter, and The Best Drill Bits For Ceramic Tile, if you’re laying ceramic tiles.

Choosing the Right 20 mm Porcelain Tile Cutter

 Dry vs Wet Tile Cutters: What's Best for 20mm Porcelain Tiles?

• Dry cutters (angle grinders or dry saws) can do the job with a high-quality blade, but they produce dust and heat.

• Wet tile cutters (wet saws or bridge saws) are the recommended option. Water cools the blade, minimises dust, and delivers crisp, precise edges on chip-resistant porcelain. Examples include the Rubi DR-350 Wet Saw 230v, Battipav Class Plus 1050S Laser & Level Bridge Saw, or DeWalt D36000 940mm Wet Saw.

Here are the top-rated tile cutters that are ideal for cutting 20 mm porcelain:

Tile Cutter	Key Features & Benefits	Image
Rubi DR-350 Wet Saw	Ideal For Building Materials Supports 300 & 350mm Blades Hinged Head For Cuts At 45° Can Withstand The Demands Of Intensive Work On Site
Battipav Class Plus 1050S Laser & Level Bridge Saw	Tile & Marble Bridge Saw 1.8HP Motor Laser Guide Wheels For Easy Manoeuvrability Water-Cooled 250mm Blade Included Connecting Cable Included 2-Year Worldwide Warranty Read more: Best Rated Tile Cutters: Everything You Need To Know About Battipav Tile Cutters
Battipav Supreme 200s Laser & Level Bridge Saw	Tile & Marble Bridge Saw For Straight & Mitre Cutting Of Natural Stone, Granite & Marble Laser Guide Wheels For Easy Manoeuvrability 300mm Blade & Connecting Cable Included 2-Year Worldwide Warranty
Rubi DCX-250 XPERT 1250 Wet Saw	Professional Wet Saw 2hp Motor Zero Dust Built-In Spirit level Removable Water Tank Max Cutting Depth: Single-pass 61mm, Two passes 90mm Voltage: 110v 2-Year Manufacturer Warranty
DeWalt D36000 940mm Wet Saw + Free Stand	Precision Cut Accuracy Integrated Residual Current Device Accommodates Larger Tiles Stainless Steel Rails Suitable For Indoor Use
Montolit Brooklyn F1 Bridge Wet Saw	Accurately Cut Ceramics, Gres Porcelain Tiles & Slabs Powerful 2 HP Engine Voltage: 110v Included SCX250 Diamond Blade Blade & Central Bore Diameter: 250 / 25.4mm Lifetime Manufacturer Warranty
Raimondi Zoe 130 Advanced Bridge Wet Saw	1300mm Maximum Cutting Length 2.2HP Motor Tilting Motor Assembly, 0° to 45° Includes 300mm Diamond Blade Wheels For Easy Transportation 1 Year Warranty
Bihui Automatic Electric Tile Cutting Machine	Automatic Electric Tile Cutting Machine Suitable For Straight Cuts, 45° Cuts & Diagonal Cuts Folding Legs With Built-In Wheels Max. Cutting Depth: 30mm Cutting Length: 1200mm Voltage: 230V/50Hz

Essential Blades: 20 mm Porcelain Tile Cutter Blade

High-quality diamond blades make or break results. On 20 mm porcelain, use blades rated for dense materials:

20mm Porcelain Blade	Key Features & Benefits	Image
Montolit SCXS-T DNA Diamond Blade For 20mm Porcelain	Premium Diamond Blade  For Wet Cutting Suitable For Use On 20mm Porcelain Slotted Profile For Cleaner & Faster Cuts Choice Of Size
Saber PCR Diamond Blade For 20mm Porcelain	Specifically Designed For Cutting Vitrified Porcelain & Ceramic Paving Tiles Up To 20mm Thick Superior Cutting Speed & Extended Lifetime Clean, Chip-Free Finish On Most Materials For Wet Cutting Not Suitable For Mitre Cuts Choice Of Size
Raimondi 250mm Segmented J Slot Diamond Blade For 12-20mm Porcelain	25.4mm Bore Size For Wet Use Only May not be suitable for porcelain less than 12mm
Rubi SPL EXT SUPERPRO Diamond Blade For Porcelain Stoneware J-SLOT	J-Slot Design Offers A Perfectly Balanced Cutting Finish Recommended For Cutting 20mm Porcelain Extraordinary Resistance Bore Size: 25.4mm Size: 250mm
OX Tools OX Pro 2CM Porcelain Diamond Blade	Fast Cutting Unique Diamond Segment Ensures Swift And Smooth Cutting Suitable For Wet & Dry Use Multiple Sizes Available Suitable For 20mm Porcelain

It’s important to note the importance of taking care of your blades to prolong their life. Sharpening stones such as the Premtool Sharpening Stone, clean and sharpen clogged diamond blades. You would use this on blades that have been used a bit and are beginning to struggle to cut your tiles, and the tiles start to glow when using them. 

Read more: 

• Best Blades To Cut 20mm Porcelain

• Best Scoring Wheel for Porcelain Tile

• Best Blades For Cutting Tiles

Step-by-Step: How To Cut 20 mm Porcelain Tiles

1. Measure and mark your cut line clearly, explore our tile marking selection, for options such as a Tracer Deep Hole Pencil & Double Tipped Marker Pen or a Pro Tiler Tools Carpenters Pencil. Remember, mark twice, cut once!

Read more: How To Read A Tape Measure

2. Secure the tile firmly to reduce vibration.
   

3. Choose method:

   • Wet saw: Run water before blade, feed slowly, keep blade cool.

   • Dry cut: Cut shallow grooves with a dry blade, then deepen with an angle grinder. Cool the blade periodically.
     

4. Finish edges with rubbing stone or diamond pad, such as the PREMTOOL Diamond Rubbing Pad, or Bihui Diamond Rubbing Pad.
   

5. Clean, dust, and dry tiles before installation.
   

How To Lay 20 mm Porcelain Tiles

• Subfloor prep: your surface must be perfectly flat and stable. You could also consider using a tile primer.

• Tile adhesive: whether you opt for a flexible tile adhesive, S1 tile adhesive, or S2 tile adhesive, ensure you’re happy with your choice, and it’s suited to your project. Popular options include Ultra Tile SPES or Ultra Tile ProEco Gel, Kerakoll H40, and Mapei Keraflex Maxi. 

Contact our expert team if you need advice on which tile adhesive to choose!

More information: Which Tile Adhesive Is Best? A Guide To Classification Of Adhesives And Grouts

• Spread the tile adhesive with a notched trowel.

Find out more: A Guide To Choosing The Right Tile Trowel and How To Use A Notched Trowel

• Ensure you back-butter tiles for better grip.

• Level diligently, use a tile levelling system to remove lippage. Take a look at this guide to find out the Best Tile Leveling System, or How To Use Tile Spacers.

• Grout after 24 hours (or the time period suggested on your tile adhesive), using flexible grout and seal to protect against moisture, with a tile sealer.

Find out more:

• What’s The Best Brush-In Patio Grout?

• How To Grout Tiles

• The World’s Best Guide To Choosing A Grout Colour

• Joint-It Epoxy Grout: A Revolution in Porcelain Grouting

• Aftercare: Consider high-quality tile cleaners. 

Helpful advice: Tile Cleaner: What Is The Best Thing To Clean Tiles With?

• Cutting 20 mm Tile Outdoors? 20mm outdoor porcelain paving slabs are often cut using wet saws. Use a continuous rim for smooth edges, or segmented blades for quick cuts, and follow the method as above.

Should you need any tiling advice or support with your 20mm porcelain tiling tool haul, don’t hesitate to contact us via email at [email protected] or give us a call at 01604 859800.