Knightsbridge Natural Finish
Sizes
Knightsbridge is a stone-effect porcelain slab and forms part of our Geologica Range. This slab is offered with a Natural finish and is available in 2 sizes. To order a Knightsbridge colour sample in Natural finish click the Order Sample button below or add to your favourites using the icon.
Geologica - Knightsbridge – Natural
300 x 600
600 x 600
Knightsbridge Product Story
With its substantial veining, Geologica is a bold stone-effect range bursting with character. Available in Polished, Natural and Structured finishes Geologica can be specified in five sizes up to 600 x 1200 mm. Five natural colours are available - Chelsea, Knightsbridge, Mayfair, Notting Hill and Richmond - with each displaying the authentic stone formations synonymous with architectural stoneware. The Structured finish, in particular with its linear contours, takes on a unique quality and can be used creatively to add interest to a monochrome colour palette. A coordinating Honeycomb three-dimensional mosaic adds versatility and is perfect for a feature wall. Geological is suitable for interior and exterior application and provides a virtually maintenance free and water-resistant, stone-effect surface. Knightsbridge is part of our Stone-effect Collection.
Geologica – Knightsbridge 
Geologica – Knightsbridge 
Geologica – Knightsbridge 
Geologica – Knightsbridge 
Geologica – Richmond, Knightsbridge 
Geologica – Knightsbridge 
Geologica – Knightsbridge 
Geologica – Knightsbridge
Knightsbridge Decorative Options
Geologica Knightsbridge Honeycomb 
Geologica Mosaic Knightsbridge
Size & finish
| Colour | Finish | Size (MM) |
|---|---|---|
| Chelsea | Mayfair | Notting Hill | Richmond | Natural | 600 x 1200 x 9.5 |
| Chelsea | Mayfair | Notting Hill | Richmond | Polished | 600 x 1200 x 9.5 |
| Mayfair | Polished | 800 x 800 x 9.5 |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Natural | 600 x 600 x 9.5 |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Polished | 600 x 600 x 9.5 |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Natural | 300 x 600 x 9.5 |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Structured | 300 x 600 x 9.5 |
Similar Colours
In addition to Knightsbridge, we also offer a number of other stone-effect porcelain tiles.
Geologica Collection
The Geologica Collection is also available in the following colours and finishes:
Chelsea – Natural Chelsea – Polished 
Chelsea – Structured 
Chelsea Honeycomb Decor – Natural 
Knightsbridge – Natural Knightsbridge – Polished 
Knightsbridge – Structured Knightsbridge Honeycomb Decor – Natural 
Mayfair – Natural Mayfair – Polished 
Mayfair – Structured 
Mayfair Honeycomb Decor – Natural 
Notting Hill – Natural Notting Hill – Polished 
Notting Hill – Structured 
Notting Hill Honeycomb Decor – Natural 
Richmond – Natural Richmond – Polished 
Richmond – Structured 
Richmond Honeycomb Decor – Natural
Decors Size & Finish
| Colour | Finish | Size (MM) | Decor |
|---|---|---|---|
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Natural | 300 x 600 x 9.5 | Honeycomb Decor |
Geologica Knightsbridge Honeycomb
Special Pieces & Mosaics
| Colour | Finish | Size (MM) | Special Piece |
|---|---|---|---|
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Natural | 80 x 600 x 9.5 | Skirting Tile |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Polished | 80 x 600 x 9.5 | Skirting Tile |
| Chelsea | Knightsbridge | Mayfair | Notting Hill | Richmond | Natural | 300 x 300 x 9.5 | Mosaic (55x55mm) |
Geologica Mosaic Knightsbridge
Technical Specification
Shade Tone Variance
Knightsbridge – Natural has been classified:
Understanding Shade Tone Variance
Shade, texture and tone can vary from piece to piece within a single tile production run. V1 shade tone variation has little or no change from piece to piece where a V4 might have a substantial variety of shade, texture and tone variation.
| Variance Rating | Description |
|---|---|
| V1 | Uniform Appearance |
| V2 | Slight Variation |
| V3 | Moderate Variation |
| V4 | Substantial Variation |
Pendulum Test Values (BS 7976-2)
| Finish | Conditions | Result | Slip Potential |
|---|---|---|---|
| Natural | Dry | 55 | |
| Natural | Wet | 36 |
Understanding Pendulum Data
The HSE Approved Pendulum Test accurately replicates the Dynamical Coefficient of Friction (COF) or 'Heel Slip' on floor surfaces and is designed to replicate a pedestrian heel strike, the point at which most slips occur.
The pendulum test readings obtained are referred to as either the Slip Resistance Value (SRV) or Pendulum Test Value (PTV). When the test is operated properly, the PTV should be interpreted as shown in the table below. This table relates to pedestrians walking in a straight line on a level surface. It can be used to accurately test the slip potential on dry or contaminated floors.
| PTV | Slip Potential |
|---|---|
| 0 - 24 | High |
| 25 - 35 | Moderate |
| 36 + | Low |
See British Standard BS 7976-2 for more information on conducting Floor Pendulum Testing on pedestrian surfaces. Pendulum Test Certificate available on request.
Ramp Test Values (DIN 51130)
| Finish/Style | R Rating Value | Friction |
|---|---|---|
| Natural | R10 | Normal |
| Structured | R11 | Good |
Understanding Ramp Test Data
DIN Standard Ramp Testing (DIN 51130) is an alternative to Pendulum Testing and generally categorised as an 'off-site' activity because of the size and complexity of the equipment required to carry out the test. The Slip Resistance Values (RSV) are factory gate values (based on supplied tiles) and categorised using the Ramp Test (DIN 51130) method which is commonly used by European factories. In this method, a lubricated inclined platform is adjusted to a gradually increasing gradient, and the angle is measured at which a person walking on it slips.
We have deliberately not included the ramp test angles on this page as this information can be confused with the angle that a floor may be safely set to, which is incorrect. The shod test results are quoted as an R Rating value from R9 to R13, which relates to the ramp angle.
| R Rating Value | Friction |
|---|---|
| R9 | Minimal |
| R10 | Normal |
| R11 | Good |
| R12 | Good |
| R13 | Very high |
See the Health and Safety Executives website for more information regarding the Ramp Test procedure. Ramp Test Certificate available on request.
Technical Data
| Specification | Test Methods | Required Value | Manufacturers mean value |
|---|---|---|---|
| Length and width | ISO 10545-2 | ±0.6% | Conforms |
| Thickness | ISO 10545-2 | ±5% | Conforms |
| Warpages of edges | ISO 10545-2 | ±0.5% | Conforms |
| Wedging | ISO 10545-2 | ±0.5% | Conforms |
| Flatness | ISO 10545-2 | ±0.5% | Conforms |
| Water Absorption | ISO 10545-3 | ≤ 0.5% | Conforms |
| Bending Strength | ISO 10545-4 | ≥ 35N/mm² | Conforms |
| Linear thermal expansion between 20C and 100C | ISO 10545-8 | According to builder's specifications | On Request |
| Thermal Shock Resistance | ISO 10545-9 | On Request | Resistant |
| Frost Resistance | ISO 10545-12 | On Request | Resistant |
| Resistance to chemical attack | ISO 10545-13 | According to builder's specifications | Resistant |
| Stain Resistance | ISO 10545-14 | Test method available | Conforms |
| Slip Resistance | DIN 51130 | - | Natural - R10 |
| Structured - R11 |
Geologica is ECOLABEL and LEED® certified.
Download PDF Catalogue
You can download the Geologica PDF catalogue here. You can call us on 020 3141 3337 or email enquiry@porcelaintiles.co.uk for more information about our Italian porcelain tiles. You can also download the Now Imagine catalogue here. Now Imagine provides our clients with full technical and manufacturing support, enabling them to incorporate large format Italian porcelain surfaces into their designs in new and innovative ways. Through our Now Imagine campaign we hope to inspire designers to think of each porcelain slab as a creative surface. Discover more here.
Ordering tile samples
To order Knightsbridge – Natural tile samples please click the black Order Sample button.
To review your items or to complete your order simply click on the white tile icon in the top right-hand corner on any page of our website. You will then have the opportunity to review, edit or complete your order. You can also complete your order by clicking on the button below.
Tile samples are provided in 10 x 20 cm format.
Environmentally Certified
All our porcelain surfaces are manufactured using sustainable processes that minimise the impact on the environment, conserving both energy & natural resources.
All products are produced without the use of any harmful or radioactive materials, are free from pollutant emissions and will not effect air quality. All packing material is produced with recycled material. Wherever possible, heat generated as a by-product of the manufacturing process is used for electricity generation, making factories energy self sufficient. All waste material that is associated with the supply of the tile surface is fully recyclable.
All products are manufactured using materials from renewable sources. They have a reduced environmental impact throughout their lifespan and no toxic, harmful or polluting substances are used for their composition and production. The materials do not release toxic, harmful or polluting substances.
Geologica meets the highest standards of quality and environmental regulations and conforms to the following certifications:
LEED®
LEED® (Leadership in Energy and Environmental Design) is the world's most widely used green building rating system by the U.S. Green Building Council. LEED® certification provides independent, third party verification that a building project meets the highest green building and performance measure. All certified projects receive a LEED® plaque, which is nationally recognized symbol demonstrating that a building us environmentally responsible, profitable and a healthy place to live and work.
The LEED® program encourages the adoption of sustainable green building and development practices and promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.
All porcelain tiles within our collection comply with LEED® certification and are suitable for the LEED® approval process.
EU Ecolabel
The EU Ecolabel helps you identify products and services that have a reduced environmental impact throughout their life cycle, from the extraction of raw material through to production, use and disposal. Recognised throughout Europe, EU Ecolabel is a voluntary label promoting environmental excellence which can be trusted.
The EU Ecolabel is awarded according to ecological criteria agreed on by experts, industry, consumer organisations and environmental NGOs and verified by independent third parties.
NSF®
NSF® has facilitated the development of more than 75 standards and protocols for sanitary food equipment, and has certified thousands of products as safe to use in restaurant and commercial kitchen settings. NSF® food equipment standards include requirements for material safety, design, construction and product performance. The products conform to the requirements of NSF/ANSI Standard 51 – Food Equipment Materials. NSF/ANSI 51 establishes minimum public health and sanitation requirements for materials and finishes used in the manufacture of commercial foodservice equipment.
GREENGUARD
GREENGUARD Certification ensures that a product meets stringent standards for minimal emissions of volatile organic compounds (VOCs) into indoor air. This program provides assurance that products designed for indoor use adhere to strict chemical emissions limits, fostering the creation of healthier interiors. Manufacturers with GREENGUARD Certification gain credibility for their sustainability claims, supported by empirical technical data from an unbiased third-party organisation. The GREENGUARD Certification Program instills confidence by ensuring that indoor products meet strict chemical emissions limits, contributing to the creation of healthier interior spaces. This empowers manufacturers to produce and customers to identify products with low chemical emissions, thereby supporting air quality and environmental well-being.
For more information please read our article on Environmental Impact.