Riven Grey Sandstone Hearth – Standard Rectangle Cut to Size
Riven Grey Sandstone Hearth – Standard Rectangle Cut to Size - 30mm / Up to - 90cm x 60cm - (XS) is backordered and will ship as soon as it is back in stock.
Related Products
Express Grey Riven Sandstone Hearths
Primethorpe’s Grey Riven Sandstone Hearths are a long-standing customer favourite. The naturally textured, rustic surface is ideal for anyone looking for a more traditional or natural-looking hearth. These express-cut hearths are available for delivery within 3 working days.
Our Grey Riven Sandstone Hearths are produced using high-quality Grey Sandstone. Each hearth is supplied unsealed with clean sawn edges, allowing you to seal, finish or trim it to suit your installation or use it just as it is
To fully understand the material and its natural characteristics, please refer to the Specification tab, where all technical details and natural tolerances are listed clearly.
Easy Ordering Process
- ✓ Choose your preferred thickness — 30mm or 50mm
- ✓ Select the base size closest to your required dimensions
- ✓ Enter your cut-to-size measurements — we’ll handle the rest
Key Features
- ✓ Square or rectangular only for express processing
- ✓ Precision cut to your requested size
- ✓ Clean sawn edges — supplied unsealed
- ✓ Fast 3-day delivery across the UK
- ✓ No hidden costs or unexpected delays
- ✓ Ideal for DIY fitting or on-site trimming
If you need a more complex shape, angled cuts or a detailed edge profile, please see our Bespoke Cut-to-Size Riven Grey Sandstone.
| Product Specifications | |
|---|---|
| General | |
| Product Name | Kandla Grey Sandstone – Hearth Grade |
| Material Type | Natural sandstone |
| Category | Fire hearth slab / fireplace stone |
| Country of Origin | India |
| Thickness Options | 30mm and 50mm |
| Colour Description | Mid to light grey with subtle tonal movement and natural grain. |
| Surface Finish | Natural riven / split surface with a gently textured finish. |
| Natural Variation | Medium to high variation in tone, shading and surface texture due to the natural layering and grain of the sandstone. |
| Edge Finishing Notes | All edges are precision machine-cut and then hand-sanded if needed. Due to the natural structure of sandstone, small sanding marks, slight tonal variations along the edges and occasional tiny micro-chips may be visible. |
| Weight | Approx. 70–120 kg per m² depending on thickness. |
| Density | Approx. 2,300–2,400 kg per m³. |
| Technical Characteristics | |
| Heat Absorption / Retention | High thermal mass, excellent heat absorption and steady heat dispersal. |
| Maximum Temperature Resistance | Typically performs safely up to approx. 300–400 °C before risk of thermal shock. Hearth must not be in direct contact with an open flame. |
| Compressive Strength | Approx. 80–120 MPa. |
| Flexural Strength | Approx. 7–12 MPa. |
| Porosity | Medium–high. |
| Water Absorption | Approx. 1–3%. |
| Thermal Conductivity | Approx. 2.0–3.0 W/mK. |
| Chemical Sensitivity | Generally more resistant to mild household acids than limestone, but prolonged contact with strong acids or aggressive cleaners may etch or lighten the surface. |
| Stain Resistance | Moderate; sealing is strongly recommended to reduce marking and improve resistance to staining. |
| Salt Sensitivity | Slight to moderate, as expected with natural sandstone; good ventilation and correct installation help reduce issues. |
| Natural Characteristics of Sandstone | |
| General Nature of the Stone | Kandla Grey Sandstone is a natural sedimentary stone formed from compacted sand and minerals over millions of years. Natural variations and features are part of its geological make-up and cannot be avoided or deemed as faults. These include tonal changes, layering, grain patterns and texture differences, all of which give the hearth its unique and authentic character. |
| Colour & Tonal Variation | The stone typically ranges from soft light grey through to mid grey, often with gentle banding, patches and shifts in tone. Some pieces may appear slightly warmer or cooler in shade. Selection and cutting aim to keep the overall look consistent, but variation between individual slabs and within a single hearth is normal. |
| Surface Texture & Grain | As a riven sandstone, the surface is created by naturally splitting the stone along its bedding planes. This can produce subtle riven ridges, shallow indents and a gently uneven feel. |
| White / Pale Mineral Patches | Occasional lighter patches or streaks may appear where the stone contains slightly different mineral concentrations or tighter grain. These can show as soft pale bands, clouds or spots. They are natural features of Kandla Grey Sandstone and cannot be completely eliminated by selection. |
| Rust / Iron Spotting | Kandla Grey Sandstone can contain small amounts of iron-bearing minerals. When exposed to moisture and air, these may oxidise and appear as orange or brown “rust” spots, patches or halos on the surface or edges over time. This is normal for grey sandstones and is not classed as a fault. |
| Production Enhancements | Where necessary we may use epoxy or stone filler, localised sanding, smoothing or colour-enhancing treatments to refine the appearance of the hearth surface and edges. These steps are part of our normal production process and are used to enhance the overall look of the product. They are not considered faults or signs of a lower grade material. |
| Application & Packaging | |
| Suitable For | Fire hearths, stove bases, fireplace hearths, chamber floors, inglenooks and internal stone features. |
| Application | Fire hearth. |
| Sealing | Sealing is recommended to reduce marking, limit water absorption and improve resistance to staining and everyday spills. |
| Installation Notes | Install on a level, load-bearing substrate and allow for expansion gaps due to changes in temperature. The hearth should not be in direct contact with open flame. Use suitable adhesives and sealers designed for natural stone. |
| Packaging | Supplied on wooden pallets or in wooden crates with appropriate protective layers. |
| Availability | Supplied in various sizes and cut-to-size hearths, subject to order requirements and stock. |
At Primethorpe Paving, we strive to provide clear and straightforward delivery options to make your shopping experience seamless and transparent.
Below is a detailed breakdown of our delivery services.
Free Delivery*
Eligibility: Available on orders of £750 or more — this can include a single item or a combination of any products on our website.
Timeframe: 3–5 business days (exact delivery date provided at checkout)
Details: Enjoy complimentary delivery with no hidden fees on all eligible orders of £750 or more.
Exclusion Postcodes: IV40–49, IV51–54, KW15–17, HS, PA20, ZE, PA21–38, PA41–49, PA60–78, KA27–28, PH42–44, PO30–41, IM, JE, GY, BT — These postcodes will be charged at a higher delivery cost, provided upon enquiry.
Standard Delivery (£65)
Cost: £65
Timeframe: 3–5 business days
Details: Available for all orders under £750. Reliable delivery within the stated timeframe.
Exclusion Postcodes: IV40–49, IV51–54, KW15–17, HS, PA20, ZE, PA21–38, PA41–49, PA60–78, KA27–28, PH42–44, PO30–41, IM, JE, GY, BT — These postcodes will be charged at a higher delivery cost, provided upon enquiry.
Express Delivery (Additional £30)
Cost: +£30 on top of Standard Delivery
Timeframe: 1–2 business days
Details: Ideal for urgent orders. Orders placed before 12 PM are processed and shipped the same day.
Note: For orders over £750, you can upgrade to Express Delivery for an additional £30.
Smaller Items Delivery (£10)
Items: Jointing compound, cement, sealer, slurry, etc.
Cost: £10 per item
Additional Cost: £10 per additional item (up to 6 items). After 6 items, a flat rate of £60 applies.
Recess Covers Delivery (£20)
Cost: £20 per item
Additional Cost: £20 per additional item (up to 3 items). After 3 items, a flat rate of £60 applies.
Installation Essentials with Paving Orders (Free)
Cost: Free
Details: When smaller items or installation essentials (e.g., jointing compound, recess covers) are ordered alongside paving, cobble, walling, coping, or hearth products — delivery for these items is free.
Samples Delivery (Free)
Cost: Free
Details: All sample orders qualify for free delivery.
Bespoke Made-to-Measure Items Details:
Bespoke or made-to-measure items may take longer to deliver due to their custom nature. However, you will always receive an exact delivery date at checkout, so you’ll know precisely when to expect your order.
Express Grey Riven Sandstone Hearths
Primethorpe’s Grey Riven Sandstone Hearths are a long-standing customer favourite. The naturally textured, rustic surface is ideal for anyone looking for a more traditional or natural-looking hearth. These express-cut hearths are available for delivery within 3 working days.
Our Grey Riven Sandstone Hearths are produced using high-quality Grey Sandstone. Each hearth is supplied unsealed with clean sawn edges, allowing you to seal, finish or trim it to suit your installation or use it just as it is
To fully understand the material and its natural characteristics, please refer to the Specification tab, where all technical details and natural tolerances are listed clearly.
Easy Ordering Process
- ✓ Choose your preferred thickness — 30mm or 50mm
- ✓ Select the base size closest to your required dimensions
- ✓ Enter your cut-to-size measurements — we’ll handle the rest
Key Features
- ✓ Square or rectangular only for express processing
- ✓ Precision cut to your requested size
- ✓ Clean sawn edges — supplied unsealed
- ✓ Fast 3-day delivery across the UK
- ✓ No hidden costs or unexpected delays
- ✓ Ideal for DIY fitting or on-site trimming
If you need a more complex shape, angled cuts or a detailed edge profile, please see our Bespoke Cut-to-Size Riven Grey Sandstone.
| Product Specifications | |
|---|---|
| General | |
| Product Name | Kandla Grey Sandstone – Hearth Grade |
| Material Type | Natural sandstone |
| Category | Fire hearth slab / fireplace stone |
| Country of Origin | India |
| Thickness Options | 30mm and 50mm |
| Colour Description | Mid to light grey with subtle tonal movement and natural grain. |
| Surface Finish | Natural riven / split surface with a gently textured finish. |
| Natural Variation | Medium to high variation in tone, shading and surface texture due to the natural layering and grain of the sandstone. |
| Edge Finishing Notes | All edges are precision machine-cut and then hand-sanded if needed. Due to the natural structure of sandstone, small sanding marks, slight tonal variations along the edges and occasional tiny micro-chips may be visible. |
| Weight | Approx. 70–120 kg per m² depending on thickness. |
| Density | Approx. 2,300–2,400 kg per m³. |
| Technical Characteristics | |
| Heat Absorption / Retention | High thermal mass, excellent heat absorption and steady heat dispersal. |
| Maximum Temperature Resistance | Typically performs safely up to approx. 300–400 °C before risk of thermal shock. Hearth must not be in direct contact with an open flame. |
| Compressive Strength | Approx. 80–120 MPa. |
| Flexural Strength | Approx. 7–12 MPa. |
| Porosity | Medium–high. |
| Water Absorption | Approx. 1–3%. |
| Thermal Conductivity | Approx. 2.0–3.0 W/mK. |
| Chemical Sensitivity | Generally more resistant to mild household acids than limestone, but prolonged contact with strong acids or aggressive cleaners may etch or lighten the surface. |
| Stain Resistance | Moderate; sealing is strongly recommended to reduce marking and improve resistance to staining. |
| Salt Sensitivity | Slight to moderate, as expected with natural sandstone; good ventilation and correct installation help reduce issues. |
| Natural Characteristics of Sandstone | |
| General Nature of the Stone | Kandla Grey Sandstone is a natural sedimentary stone formed from compacted sand and minerals over millions of years. Natural variations and features are part of its geological make-up and cannot be avoided or deemed as faults. These include tonal changes, layering, grain patterns and texture differences, all of which give the hearth its unique and authentic character. |
| Colour & Tonal Variation | The stone typically ranges from soft light grey through to mid grey, often with gentle banding, patches and shifts in tone. Some pieces may appear slightly warmer or cooler in shade. Selection and cutting aim to keep the overall look consistent, but variation between individual slabs and within a single hearth is normal. |
| Surface Texture & Grain | As a riven sandstone, the surface is created by naturally splitting the stone along its bedding planes. This can produce subtle riven ridges, shallow indents and a gently uneven feel. |
| White / Pale Mineral Patches | Occasional lighter patches or streaks may appear where the stone contains slightly different mineral concentrations or tighter grain. These can show as soft pale bands, clouds or spots. They are natural features of Kandla Grey Sandstone and cannot be completely eliminated by selection. |
| Rust / Iron Spotting | Kandla Grey Sandstone can contain small amounts of iron-bearing minerals. When exposed to moisture and air, these may oxidise and appear as orange or brown “rust” spots, patches or halos on the surface or edges over time. This is normal for grey sandstones and is not classed as a fault. |
| Production Enhancements | Where necessary we may use epoxy or stone filler, localised sanding, smoothing or colour-enhancing treatments to refine the appearance of the hearth surface and edges. These steps are part of our normal production process and are used to enhance the overall look of the product. They are not considered faults or signs of a lower grade material. |
| Application & Packaging | |
| Suitable For | Fire hearths, stove bases, fireplace hearths, chamber floors, inglenooks and internal stone features. |
| Application | Fire hearth. |
| Sealing | Sealing is recommended to reduce marking, limit water absorption and improve resistance to staining and everyday spills. |
| Installation Notes | Install on a level, load-bearing substrate and allow for expansion gaps due to changes in temperature. The hearth should not be in direct contact with open flame. Use suitable adhesives and sealers designed for natural stone. |
| Packaging | Supplied on wooden pallets or in wooden crates with appropriate protective layers. |
| Availability | Supplied in various sizes and cut-to-size hearths, subject to order requirements and stock. |
At Primethorpe Paving, we strive to provide clear and straightforward delivery options to make your shopping experience seamless and transparent.
Below is a detailed breakdown of our delivery services.
Free Delivery*
Eligibility: Available on orders of £750 or more — this can include a single item or a combination of any products on our website.
Timeframe: 3–5 business days (exact delivery date provided at checkout)
Details: Enjoy complimentary delivery with no hidden fees on all eligible orders of £750 or more.
Exclusion Postcodes: IV40–49, IV51–54, KW15–17, HS, PA20, ZE, PA21–38, PA41–49, PA60–78, KA27–28, PH42–44, PO30–41, IM, JE, GY, BT — These postcodes will be charged at a higher delivery cost, provided upon enquiry.
Standard Delivery (£65)
Cost: £65
Timeframe: 3–5 business days
Details: Available for all orders under £750. Reliable delivery within the stated timeframe.
Exclusion Postcodes: IV40–49, IV51–54, KW15–17, HS, PA20, ZE, PA21–38, PA41–49, PA60–78, KA27–28, PH42–44, PO30–41, IM, JE, GY, BT — These postcodes will be charged at a higher delivery cost, provided upon enquiry.
Express Delivery (Additional £30)
Cost: +£30 on top of Standard Delivery
Timeframe: 1–2 business days
Details: Ideal for urgent orders. Orders placed before 12 PM are processed and shipped the same day.
Note: For orders over £750, you can upgrade to Express Delivery for an additional £30.
Smaller Items Delivery (£10)
Items: Jointing compound, cement, sealer, slurry, etc.
Cost: £10 per item
Additional Cost: £10 per additional item (up to 6 items). After 6 items, a flat rate of £60 applies.
Recess Covers Delivery (£20)
Cost: £20 per item
Additional Cost: £20 per additional item (up to 3 items). After 3 items, a flat rate of £60 applies.
Installation Essentials with Paving Orders (Free)
Cost: Free
Details: When smaller items or installation essentials (e.g., jointing compound, recess covers) are ordered alongside paving, cobble, walling, coping, or hearth products — delivery for these items is free.
Samples Delivery (Free)
Cost: Free
Details: All sample orders qualify for free delivery.
Bespoke Made-to-Measure Items Details:
Bespoke or made-to-measure items may take longer to deliver due to their custom nature. However, you will always receive an exact delivery date at checkout, so you’ll know precisely when to expect your order.
