Siena Natural Finish

Sizes

slip rating

R10

Variation

V2

Siena is a stone-effect porcelain tile and forms part of our Grandiosa Range. This tile is offered with a Natural finish. To order a Siena tile sample in Natural finish click the Order Sample button below.

Siena Product Story

With four on-trend colours, Grandiosa is an avant-garde stone-effect tile that combines beauty with grandeur. The range comes in three distinct finishes, Natural, Honed and Polished, with each offering a particular style of its own. This enables Grandiosa to adapt to the requirements of the scheme, providing designers with the opportunity to create remarkably diverse spaces. For projects requiring something a little bit special, we have introduced a range of accompanying bookmatched pieces. These highly polished decorative pairs feature a perfect mirror image pattern, creating a show-stopping bookmatched effect. Whatever the occasion, Grandiosa is sure to make a dramatic impact. Siena is part of our Stone-effect Collection.

Siena Decorative Options

Size & finish

ColourFinishSize(MM)
Aquileia | Assisi | Ercolano | SienaHoned1200 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaNatural1200 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaPolished1200 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaHoned600 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaNatural600 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaPolished600 x 1200 x 10.5
Aquileia | Assisi | Ercolano | SienaHoned600 x 600 x 10.5
Aquileia | Assisi | Ercolano | SienaNatural600 x 600 x 10.5
Aquileia | Assisi | Ercolano | SienaPolished600 x 600 x 10.5
Aquileia | Assisi | Ercolano | SienaNatural300 x 600 x 10.5

Alternative Colours

The Grandiosa Range is also available in the following colours and finishes:

  • Aquileia – Honed
    Aquileia – Honed
  • Aquileia – Natural
    Aquileia – Natural
  • Aquileia – Polished
    Aquileia – Polished
  • Assisi – Honed
    Assisi – Honed
  • Assisi – Natural
    Assisi – Natural
  • Assisi – Polished
    Assisi – Polished
  • Ercolano – Honed
    Ercolano – Honed
  • Ercolano – Natural
    Ercolano – Natural
  • Ercolano – Polished
    Ercolano – Polished
  • Siena – Honed
    Siena – Honed
  • Siena – Natural
    Siena – Natural
  • Siena – Polished
    Siena – Polished
  • Aquileia Bookmatched – Polished
    Aquileia Bookmatched – Polished
  • Assisi Bookmatched – Polished
    Assisi Bookmatched – Polished
  • Ercolano Bookmatched – Polished
    Ercolano Bookmatched – Polished
  • Siena Bookmatched – Polished
    Siena Bookmatched – Polished

Related Tiles

In addition to Siena, we also offer a number of other stone-effect porcelain tiles in beige.

Discover similar tiles

Bookmatched

Grandiosa features remarkable 1200 x 1200 mm Bookmatched tiles, ideal for creating a breathtaking feature wall. Tiles are available in ‘Block A’ and ‘Block B’ matching stone surfaces, the pattern of which mirror each other. Using both blocks in various configurations enables the creation of up to three bookmatched designs. The three bookmatched designs shown here require four tiles (Two x ‘Block A’ and Two x ‘Block B’). Grandiosa Bookmatched tiles are available in all four colourways.

DetailColourFinishSize(MM)
Bookmatch Block AAquileia | Assisi | Ercolano | SienaPolished1200 x 1200 x 10.5
Bookmatch Block BAquileia | Assisi | Ercolano | SienaPolished1200 x 1200 x 10.5

Special Pieces & Mosaics

DetailColourFinishSize(MM)
Skirting TileAquileia | Assisi | Ercolano | SienaNatural60 x 1200 x 10.5
Skirting TileAquileia | Assisi | Ercolano | SienaPolished60 x 1200 x 10.5
Skirting TileAquileia | Assisi | Ercolano | SienaNatural60 x 600 x 10.5
Skirting TileAquileia | Assisi | Ercolano | SienaPolished60 x 600 x 10.5
Step TileAquileia | Assisi | Ercolano | SienaNatural325 x 1200 x 10.5

Technical Specification

Shade Tone Variance

Grandiosa has been classified: V2 variation

Understanding Shade Tone Variance

porcelain tile shade tone variation

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 RatingDescription
V1Uniform Appearance
V2Slight Variation
V3Moderate Variation
V4Substantial Variation

Pendulum Test Values (BS 7976-2)

FinishConditionsResultSlip Potential
NaturalDry60
NaturalWet30

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.

PTVSlip Potential
0 - 24High
25 - 35Moderate
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/StyleR Rating ValueFriction
slip ratingR10

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 ValueFriction
R9Minimal
R10Normal
R11Good
R12Good
R13Very high

See the Health and Safety Executives website for more information regarding the Ramp Test procedure. Ramp Test Certificate available on request.

Technical Data

Physical PropertiesStandard of TestRequired ValueManufacturers Mean Values
Dimensions and AppearanceEN ISO 10545-2Prospect G.1Compliant
Water absorptionEN ISO 10545-3≤ 0.5%0.10%
Flexion resistanceEN ISO 10545-4min. 35 N/mm²45 N/mm²
  ≥ N 7.5 mm: min. 1300 N8.5 mm 2500 N*
   12 mm 5000 N*
   14 mm 6500 N*
   20 mm 11000 N*
Deep abrasion resistanceEN ISO 10545-6≤ 175 mm³140 mm³
Coefficient of linear thermal-expansionEN ISO 10545-8Available on Request
Resistance to sudden temperature changesEN ISO 10545-9Available on requestResistant
Frost resistanceEN ISO 10545-12Always testedResistant
Household chemicals and swimming pool cleansersEN ISO 10545-13UGL (min. UB)UGL (min. UB)
  GL (min. GB)GL (min. GB)
Acics and low concentration alkalis UGLUGL
  From ULA, ULB to ULCFrom ULA, ULB to ULC
  GLGL
  From GLA, GLB to GLCFrom GLA, GLB to GLC
Acids and High concentration Alkalis Available on requestAvailable on Request
Resistance to stainsEN ISO 10545-14Available on requestMin. 3
    
* Information relating to the size of the sample used is available on request  

Grandiosa is ECOLABEL and LEED® certified.

Download PDF Catalogue

You can download the Grandiosa PDF catalogue here. Further catalogues are available on our catalogue page. You can call us on 020 8731 6787 or email enquiry@porcelaintiles.co.uk for more information about our Italian porcelain tiles.

Ordering tile samples

To order Siena – Natural tile samples please click this order 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 120 x 120 mm or 150 x 150 mm format. For more complex or subtle patterned tiles, we provide 150 x 300 mm format samples.

Environmentally Certified

Porcelain tiles are sustainable and environmentally certified and contain no harmful chemicals. They are made with 100% natural minerals and are frost resistant making them ideal for interior and exterior applications. Combining beauty with strength and possessing an ability to influence both lifestyle and emotion, porcelain tiles have become the new luxury surface covering. Expressing a style that demonstrates new forms of elegance and a versatility that caters for modern and traditional tastes, porcelain has the power to shape design trends.

Our Italian collection is carefully selected and regularly updated and uses the most advanced manufacturing techniques. This ensures we maintain the highest level of quality and performance without harming the environment.

Grandiosa is ECOLABEL and LEED® certified.

LEED® certification

LEED<sup>®</sup> certified

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

ECOLABEL certified

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.

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