You can read more about how we use cookies here.
Gritstone
Aggregate
heavy duty gritted finish
300 x 300 x 9mm • 11pcs/24 kg per m2

A hard wearing tile with aluminium oxide particles embedded throughout for sustainable slip resistance. Like Pebbled Aggregate, it is a practical solution for:
- Areas requiring a heavy duty surface
- High traffic areas such as public transport locations
- Wheeled trolley traffic areas and access ramps
- Food preparation and manufacturing areas
- External areas requiring slip resistance in all types of weather conditions
- Network Rail approved
-
Steel Grey
300 x 300 DW-GASGR3030
-
Dark Grey
300 x 300 DW-GADGR3030
-
Quartz
300 x 300 DW-GAQUZ3030

Non-combustible
Wall installation A1 / Floor installation A1FL

Format
148 x 148 x 9mm

300 x 300 x 9mm
Surface Detail

Technical Characteristics
Displacement Volume |
Shod Dry (4S96 dry) |
Shod Wet (4S96 wet) |
Barefoot Wet (TRRL wet) |
Ramp Test |
---|---|---|---|---|
n/a | 58 | 50 | n/a* | R11 (shod only) |
*not suitable for barefoot use
Fully Vitrified Dust Pressed Tiles - Annex G, Group Bla
Standard | Requirement | Typical Test Value | ||
---|---|---|---|---|
300 x 300 x 9mm | ||||
Length & Width | EN ISO 10545-2 | +/- 0.6% max +/- 2.0 mm | Conforms | |
Thickness | +/- 5.0% max +/- 0.5 mm | Conforms | ||
Straightness of Sides | +/- 0.5% max +/- 1.5 mm | Conforms | ||
Rectangularity | +/- 0.5% max +/- 2.0 mm | Conforms | ||
Surface Flatness: A-B-C | +/- 0.5% max +/- 2.0 mm | Conforms | ||
Surface Quality | A minimum of 95% of the tiles will be free from visible defects | Conforms | ||
Water Absorption % by Mass | EN ISO 10545-3 | < 0.5% | Group Bla Fully Vitrified | |
Breaking Strength ≥7.5mm | EN ISO 10545-4 | >1300N | Conforms 3583N | |
Modulus of Rupture | EN ISO 10545-4 N/mm2 N |
Minimum 35 N/mm2 Individual minimum 32 |
Conforms | |
Resistant to Deep Abrasion of Unglazed Tiles | EN ISO 10545-6 | Maximum 175vmm3 | Between 19.0mm / 56vmm3 and 19.1mm / 57vmm3 | |
Thermal Shock Resistance | EN ISO 10545-9 | Cycled 10 times between temperature of 15o & 145o C | Fully Resistant | |
Frost Resistance | EN ISO 10545-12 | 100 Freeze Thaw Cycles | No Damage | |
Resistance to Household Chemicals and Swimming Pool Salts | EN ISO 10545-13 | Minumum UB | UA No Visible Effects | |
Low Acids & Alkali | ULA No Visible Effects | |||
High Acids & Alkali | UHA No Visible Effects | |||
Surface Hardness MOHS UNE 67-101-92-2012 |
>6 | >6 | ||
Reaction to Fire EM14411 Annex ZA, classified without testing (CWT) |
93/68/EEC |
When installed on walls A1 When installed on floors A1FL |
Non combustible | |
Recycled Content | Pre Consumer 4% | Post Consumer 100% | ||
Environmental | Products do not contain VOCs |
Architects, specifiers and design professionals:
For further information, advice or guidance on choosing Dorset Woolliscroft products please contact us

GRITSTONE AGGREGATE DARK GREY at Wokingham Station (South West Trains)