Honed Black Granite Hearth – Standard Rectangle Cut to Size
Honed Black Granite Hearth – Standard Rectangle Cut to Size - 20mm / Up to - 90cm x 60cm - (XS) is backordered and will ship as soon as it is back in stock.
Express Honed Black Granite Hearths
Black granite is one of the most durable and hardwearing hearth materials available, making it a reliable choice for busy homes and regular use. Our Express Honed Black Granite Hearths are cut to size and delivered within just 3 working days, ideal if you need a replacement hearth quickly or have a last-minute installation.
Each Express Honed Black Granite Hearth is made from premium Absolute Black Granite, finished with a smooth honed surface for a clean, matt appearance. Every hearth is supplied unsealed with clean sawn edges, allowing you use as it is or to trim to suit your installation needs on site
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 from 20mm, 30mm or 50mm thickness
- ✓ Select the base size closest to the dimensions you require
- ✓ Enter your cut-to-size measurements — we’ll take care of 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 available across the UK
- ✓ No hidden costs or unexpected delays
- ✓ Suitable for DIY installation or further trimming on site
If you need a more complex shape, angled cuts or a specific edge profile, please see our Bespoke Cut-to-Size Honed Granite.
| Product Specifications | |
|---|---|
| General | |
| Product Name | Absolute Black Granite – Honed Hearth Grade |
| Material Type | Natural granite |
| Category | Fire hearth slab / fireplace stone |
| Country of Origin | India |
| Thickness Options | 20mm, 30mm and 50mm |
| Colour Description | Deep black background with fine natural mineral specks and subtle crystal structure, deepening further when sealed. |
| Surface Finish | Machine-honed, smooth and flat surface with a soft low-sheen / matte finish. |
| Natural Variation | Generally uniform appearance with low variation in tone; natural speckling, crystal movement and subtle shading remain visible in the honed finish. |
| Edge Finishing Notes | Edges are clean-cut, sawn and smoothly finished rather than honed. Minor saw lines, tiny chips or slight tonal differences along the edge may be visible and are typical of natural granite processing. |
| Weight | Approx. 80–90 kg per m² at 30 mm thickness. |
| Density | Approx. 2,900–3,050 kg per m³. |
| Technical Characteristics | |
| Heat Absorption / Retention | Excellent thermal mass — absorbs heat and releases it slowly. |
| Max Temperature Resistance | Approx. 500–600 °C. Must not contact open flame. |
| Compressive Strength | Approx. 150–250 MPa. |
| Flexural Strength | Approx. 15–30 MPa. |
| Porosity | Low; honed surfaces may show marks more readily if unsealed. |
| Water Absorption | Approx. 0.2–0.5%. |
| Thermal Conductivity | Approx. 2.5–3.5 W/mK. |
| Chemical Sensitivity | Good resistance to most household chemicals; prolonged contact with strong acids or alkalis may alter the surface appearance. |
| Stain Resistance | Good; sealing is recommended, especially in front of stoves or open fires. |
| Salt Sensitivity | Low. |
| Natural Characteristics | |
| General Nature | Absolute Black Granite from India is a dense, fine-grained igneous stone with a tight crystal structure. The surface is mechanically honed to create a flatter, smoother finish while retaining its natural mineral speckling and subtle movement. |
| Colour Profile | Although marketed as “absolute black”, genuine granite will show fine specks and slight tonal shifts rather than a flat, jet-black paint-like finish. When sealed, the colour deepens to a rich, uniform-looking black while the natural speckle and grain remain visible on close inspection. |
| Mineral Movement | Natural crystal distribution creates tiny specks, pinpoints of lighter or darker minerals and very subtle mottling. Occasional faint lines or changes in grain direction may be present and are typical of natural granite. |
| Honed Surface Features | The honing process may produce faint tooling lines, micro-pits, slight sheen variation and small filled areas within the surface. These are normal characteristics of honed granite and do not affect performance. |
| Natural Markings | You may see small natural fissures, crystal clusters, pinpoint pits, darker or lighter specks and subtle flow lines. These are inherent features of granite and should be expected in a genuine stone hearth. |
| Pyrite / Metallic Inclusions | Occasional tiny metallic or reflective mineral flecks may appear within the stone or on cut edges. These are natural inclusions and not faults. |
| Production Enhancements | Enhancements may include resin or epoxy fillers, localised smoothing, edge refinement and colour-enhancing treatments. These are standard practices for honed natural granite. |
| Application & Packaging | |
| Suitable For | Fire hearths, stove bases, inglenooks, chamber floors. |
| Application | Internal use only. |
| Sealing | Strongly recommended to deepen colour, reduce fingerprinting and improve resistance to marking. |
| Installation Notes | Install on a stable, level substrate. Keep away from direct flame and allow suitable movement joints where required. |
| Packaging | Supplied on wooden pallets/crates with protective layers. |
| Availability | 20mm, 30mm and 50mm |
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 Honed Black Granite Hearths
Black granite is one of the most durable and hardwearing hearth materials available, making it a reliable choice for busy homes and regular use. Our Express Honed Black Granite Hearths are cut to size and delivered within just 3 working days, ideal if you need a replacement hearth quickly or have a last-minute installation.
Each Express Honed Black Granite Hearth is made from premium Absolute Black Granite, finished with a smooth honed surface for a clean, matt appearance. Every hearth is supplied unsealed with clean sawn edges, allowing you use as it is or to trim to suit your installation needs on site
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 from 20mm, 30mm or 50mm thickness
- ✓ Select the base size closest to the dimensions you require
- ✓ Enter your cut-to-size measurements — we’ll take care of 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 available across the UK
- ✓ No hidden costs or unexpected delays
- ✓ Suitable for DIY installation or further trimming on site
If you need a more complex shape, angled cuts or a specific edge profile, please see our Bespoke Cut-to-Size Honed Granite.
| Product Specifications | |
|---|---|
| General | |
| Product Name | Absolute Black Granite – Honed Hearth Grade |
| Material Type | Natural granite |
| Category | Fire hearth slab / fireplace stone |
| Country of Origin | India |
| Thickness Options | 20mm, 30mm and 50mm |
| Colour Description | Deep black background with fine natural mineral specks and subtle crystal structure, deepening further when sealed. |
| Surface Finish | Machine-honed, smooth and flat surface with a soft low-sheen / matte finish. |
| Natural Variation | Generally uniform appearance with low variation in tone; natural speckling, crystal movement and subtle shading remain visible in the honed finish. |
| Edge Finishing Notes | Edges are clean-cut, sawn and smoothly finished rather than honed. Minor saw lines, tiny chips or slight tonal differences along the edge may be visible and are typical of natural granite processing. |
| Weight | Approx. 80–90 kg per m² at 30 mm thickness. |
| Density | Approx. 2,900–3,050 kg per m³. |
| Technical Characteristics | |
| Heat Absorption / Retention | Excellent thermal mass — absorbs heat and releases it slowly. |
| Max Temperature Resistance | Approx. 500–600 °C. Must not contact open flame. |
| Compressive Strength | Approx. 150–250 MPa. |
| Flexural Strength | Approx. 15–30 MPa. |
| Porosity | Low; honed surfaces may show marks more readily if unsealed. |
| Water Absorption | Approx. 0.2–0.5%. |
| Thermal Conductivity | Approx. 2.5–3.5 W/mK. |
| Chemical Sensitivity | Good resistance to most household chemicals; prolonged contact with strong acids or alkalis may alter the surface appearance. |
| Stain Resistance | Good; sealing is recommended, especially in front of stoves or open fires. |
| Salt Sensitivity | Low. |
| Natural Characteristics | |
| General Nature | Absolute Black Granite from India is a dense, fine-grained igneous stone with a tight crystal structure. The surface is mechanically honed to create a flatter, smoother finish while retaining its natural mineral speckling and subtle movement. |
| Colour Profile | Although marketed as “absolute black”, genuine granite will show fine specks and slight tonal shifts rather than a flat, jet-black paint-like finish. When sealed, the colour deepens to a rich, uniform-looking black while the natural speckle and grain remain visible on close inspection. |
| Mineral Movement | Natural crystal distribution creates tiny specks, pinpoints of lighter or darker minerals and very subtle mottling. Occasional faint lines or changes in grain direction may be present and are typical of natural granite. |
| Honed Surface Features | The honing process may produce faint tooling lines, micro-pits, slight sheen variation and small filled areas within the surface. These are normal characteristics of honed granite and do not affect performance. |
| Natural Markings | You may see small natural fissures, crystal clusters, pinpoint pits, darker or lighter specks and subtle flow lines. These are inherent features of granite and should be expected in a genuine stone hearth. |
| Pyrite / Metallic Inclusions | Occasional tiny metallic or reflective mineral flecks may appear within the stone or on cut edges. These are natural inclusions and not faults. |
| Production Enhancements | Enhancements may include resin or epoxy fillers, localised smoothing, edge refinement and colour-enhancing treatments. These are standard practices for honed natural granite. |
| Application & Packaging | |
| Suitable For | Fire hearths, stove bases, inglenooks, chamber floors. |
| Application | Internal use only. |
| Sealing | Strongly recommended to deepen colour, reduce fingerprinting and improve resistance to marking. |
| Installation Notes | Install on a stable, level substrate. Keep away from direct flame and allow suitable movement joints where required. |
| Packaging | Supplied on wooden pallets/crates with protective layers. |
| Availability | 20mm, 30mm and 50mm |
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.
