Single Size Pack (900 x 600 mm) 42 Pieces

22.68m2 / 42 Paving Slabs
Per m² £50.31 per m²inc VAT £41.92 per m²ex VAT
/
£1,140.99inc VAT £950.82ex VAT
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Usually replenished within 14 days

Mini Pack (900 x 600 mm) 10 Pieces

5.4m2 / 10 Paving Slabs
Per m² £66.99 per m²inc VAT £55.82 per m²ex VAT
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£361.75inc VAT £301.46ex VAT
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Usually replenished within 14 days

1 x Sample (200 x 100 mm Slip)

0.02m2 / 1 sample
Per m² £449.50 per m²inc VAT £374.58 per m²ex VAT
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£8.99inc VAT £7.49ex VAT
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Usually replenished within 14 days

Product Summary

Part of our natural stone porcelain range, Keswick Carbon Slate patio slabs are designed to closely mimic natural black slate paving, whilst also providing all the benefits that come with exterior porcelain tiles.

Keswick Carbon Slate 900 x 600 x 20 mm Black Slate-Effect Porcelain Paving Slabs feature a blend of dark grey and charcoal tones and slate patterning with a subtle soft-riven texture, creating the distinctive appearance of honed black slate. These slabs are slip-resistant, frost-resistant and very durable, with a vitrified finish and sawn edges for a sleek look. They require minimal maintenance, needing only regular sweeping and occasional washing with warm soapy water.

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Key features

  • Black slate - these slabs have the appearance of Brazilian black slate, providing a natural stone-effect, but with all the benefits of porcelain paving.
  • Durable - robust, durable, vitrified technology. Porcelain paving is scratch, abrasion resistant and fade resistant.
  • Non-porous & resilient - Porcelain paving is almost impermeable, making it frost resistant, stain-resistant and waterproof.
  • Low maintenance - 1) sweep 2) wash with soapy water 3) scrub the tiles 4) leave to dry, it's that easy.
  • Slip-resistant - R11 anti-slip finish, for outdoor use in the UK, gives these slabs good grip underfoot in damp and wet weather.
  • Weatherproof - resistant to heat, frost and rain, the common causes of damage to standard paving.
  • Keeps Its Colour - Unlike concrete and natural stone, porcelain is not affected (bleached) by sunlight, so will not fade/weather.
Product details

Keswick Carbon Slate Porcelain Paving Slabs

These Keswick Carbon Slate 900 x 600 x 20 mm Black Slate-Effect Porcelain Paving Slabs offer an elegant, durable solution for outdoor spaces. This pack includes 42 slabs, covering a total area of 22.68 m², making it ideal for garden patios, pathways, or terraces. Designed with high-quality porcelain, these slabs provide superior resistance to weather, stains, and wear, ensuring longevity with minimal maintenance.

The Black Slate Stone-Effect

The key feature of these slabs is their authentic natural black slate stone-effect design. Incorporating a palette of dark grey and charcoal hues, they mimic the natural, time-worn beauty of rich black slate. The slabs have subtle variations in their pattern designs, to add depth and character, bringing a sophisticated and elegant aesthetic to any outdoor space. This natural stone look is achieved with precision, creating a seamless blend of form and function.

Versatility of 900 x 600 Porcelain Exterior Slabs

The generous size of 900 x 600 mm provides a contemporary feel, ideal for creating expansive, cohesive garden patios. The thickness of 20 mm ensures durability under foot traffic and outdoor conditions. These slabs are slip-resistant and frost-proof, making them perfect for year-round use. Easy to clean and install, they combine practicality with timeless style.

 

Benefits of Porcelain Paving

Porcelain Paving has many advantages over standard natural quarried stones or concrete paving. These include the following:

  • Super strong & durable
  • Easy to clean
  • No need to seal
  • Easier maintenance
  • Frost resistant
  • Algae resistant
  • Non-Porous (Waterproof)
  • Better slip resistance
  • Scratch and abrasion-resistant
  • Consistent colouration
  • Fade-resistant

Porcelain Paving vs Natural Stone Paving

Porcelain paving ticks all the boxes. The material quality, improved performance characteristics, extended longevity, and lower maintenance/upkeep of porcelain paving significantly lowers lifetime-costs for any garden patio paving when compared to natural stone or concrete paving.

Porcelain will outlive all other types of stone, which will save you money in the long run; especially as typically, the slabs only account for 20-30% of the initial cost of laying a new patio installation. If kept well maintained, your porcelain patio will still look brand new in 10 years time.  You simply can’t put a price on slabs of this quality when looking at the long-term (10 years plus) solution for your garden. Because porcelain exterior tiles are vitrified (glass-like) and the material is a solid homogeneous slab, it is waterproof and impervious. This means that dirt and grime, algae and lichen cannot penetrate and get in the material of these paving slabs. This makes keeping them clean and maintaining them much easier. Simply brush off leaves and detritus and wash with warm soapy water.

 

 

Porcelain Paving

Natural Stone Paving

Concrete Paving

Vitrified

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Non-Porous

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Anti Slip R11 Rating

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Frost resistant

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Algae resistant

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Low Maintenance

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Calibrated Available

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Consistent Colour

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Strong and Durable

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Indoor & Outdoor

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Stain Resistant

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Laying Porcelain Slabs

Porcelain paving uses printed designs on the surface of the slab to create the patterns. Each pack will typically contain a variety of tile designs to ensure sufficient visual variation when you lay them. To ensure you do not lay matching patterns adjacent to one another and to ensure the blend/mix looks more varied, we advise inspecting the slabs prior to installation and determining your laying pattern. This ensures that the overall desired hue/pattern is achieved and evens out any slight colour discrepancies when laying more than one pack. Laying your patio one pallet at a time can lead to slight but visible colour banding.

Porcelain paving is non-porous and, therefore, requires a Slurry Primer to ensure it bonds properly with the bedding mortar. The priming slurry should be applied to the underside of each paving tile just prior to laying. Please refer to the laying instructions if in any doubt.

A flexible Jointing Grout should be used, and care must be taken not to let it dry on the surface of the tile. We recommend applying a protective sealant to your porcelain tiles to help prevent marking from grout residue (Porcelain Tile Protector).

To install and lay porcelain patio paving slabs, you'll need to do the following steps:

  1. Measure up and mark out your patio - ensure you calculate both 1) area in square metres (m2)  and 2) the fall (slope) required for drainage.
  2. Dig out the patio area to create the substrate (220 -230 mm depth).
  3. Lay the sub-base of MOT Type-1 hardcore (compacted & 150 mm depth).
  4. Coat the slabs' underside with priming slurry to ensure their bond. As porcelain is non-porous, priming slurry is essential to ensure you are able to successfully bond the slabs to the bedding mortar.
  5. Trowel-in and lay a bedding course of mortar mix (50 mm depth) immediately prior to laying each slab.
  6. Lay the paving slabs on to the mortar bed and tamp down. Ensure you leave the desired joint spacing between the slabs and the slabs are “level” to the fall.
  7. Leave to set for 24 hours, so the mortar mix can cure enough for you to walk on the slabs.
  8. Grout the joints between the paving (pointing) with exterior tile grout. We would advise using Pavestone Porcelain Tile Protector to make removing grout residue easier.

To calculate the areas of paving in square-metres (m2), the amount of sub-base hardcore or the amount of sand and cement you'll need for the mortar mix bedding course, please refer to our paving calculators.

Step-by-Step Patio Installation Guide

Please see our step-by-step installation guide, which includes videos for all the key steps - How to lay a patio.

If you require any additional information on laying our porcelain, please give us a call on 01993 608 824 and speak to our dedicated expert paving team.

 

Care & Maintenance

Because porcelain paving is non-porous, many of the issues that arise with concrete and natural stone paving, do not occur with porcelain outdoor tiles. Walked-on dirt and grime and washed-on soluble grime and dirt are almost guaranteed on every patio. With porcelain paving slabs, this dirt and grime is largely superficial and sitting on the surface, as it cannot penetrate the vitrified homogeneous porcelain tile. Therefore, most of this build up of grime can be dealt with by brushing down your porcelain patio with yard brush and warm soapy water, and rinsing off with a garden hose.

There will inevitably be windblown or falling detritus and organic material such as leaves, twigs, nuts, seeds and grass cuttings that come to settle on your patio. These can transfer a contact stain when they are wet/damp of natural tannin pigments (akin to a tea stain) that will leave brown marks on your slab. Obviously, the first solution is to regularly sweep off any organic material that settles on your porcelain patio. However, should the paving become stained with tannins, then Pavestone Porcelain Patio Cleaner is recommended to help remove these blemishes.

 

Specifications
  Single Size Pack (900 x 600 mm) 42 Pieces Mini Pack (900 x 600 mm) 10 Pieces 1 x Sample (200 x 100 mm Slip)
No. of Pieces 42 10 1
Pack Coverage (m²) 22.68 5.4 0.02
Range Keswick Outdoor Tile Range Keswick Outdoor Tile Range Paving
Prod Type Porcelain Paving Slabs Porcelain Paving Slabs Sample
Material Porcelain Porcelain Porcelain
Finish Smooth Smooth N/A
Finish (Edge) Sawn Straight Edge Sawn Straight Edge N/A
Colour Black Black N/A
None Black Black
Dimension (W) 900 900 200
Dimension (H) 600 600 100
None 20 20
Interior / Exterior Exterior Exterior Exterior
Pack Contents 900 x 600 x 20 MINI PACK Single Size Sample
Pack Sold As Single Size Pack Mini Pack Sample
Pack Description

900 x 600 Qty 42

900 x 600 Qty 10

1 x sample

Pieces Description Paving Slabs Paving Slabs sample

Usually replenished within days