Kandla Grey Riven 18 & 22mm Calibrated Sandstone Patio Packs

These Kandla Grey natural sandstone slabs are ideal for garden patios and pathways. They are calibrated to 18 & 22mm thick. 

In accordance with BSEN standards the paving is +/- 2mm in thickness, ethically sourced, and delivered directly from the factory in Kota, India. 

Calibrated paving means that the slabs have been cut down to a consistent thickness, so they are quicker and easier to lay and you do not need to keep adjusting your mortar bed to achieve a level patio surface.

As Indian sandstone paving is a softer, less dense material than other natural stone, a thicker dimensional paving size of 22mm is the most common size used in the UK market. 

Indian sandstone paving is a durable material that has been used for many years in the UK and is less prone to thermal expansion/contraction cracks than concrete.

Kandla Grey paving is hard wearing with slight variations in grey colouring and patterning, which means each paving stone is unique. The riven surface provides excellent slip resistance and is ideal for creating a patio where a more traditional or rustic style is desired.

Sandstone is porous, therefore is not impervious to spills and weathering. However, your stone can be protected using Ceetect Aqua, our water-based sealant, that will also minimise the impact on the colour and natural appearance of your sandstone paving.

Kandla Grey Riven Paving is one of the most popular products used for the garden in the UK because of its traditional colours, durability and price.

• 22mm PATIO Packs [19.0m2] of mixed sizes contain 16 each of 90x60cm/60x60cm/60x29cm and 12 of 29x29cm size paving slabs. 
• 18mm PATIO Packs [22.0m2] of mixed sizes contain 17 each of 90x60cm /60x60cm, 60x29cm = 18 pcs, and 19 of 29x29cm size paving slabs.
• 22mm MEDI Packs [9.5m2] of mixed sizes contain 8 each of 90x60cm/60x60cm/60x29cm and 6 of 29x29cm size paving slabs.
• 22mm ECO Packs [15.48m2] of mixed sizes contain 13 each of 90x60cm/60x60cm/60x29cm and 9 of 29x29cm size paving slabs.

Based on m2 coverage - includes grout joint 

Kerbside Delivery

All orders for tiles, aggregates and paving are packed onto a pallet, and or normally in a wooden crate, wire frame case, or bag. By placing the order and accepting our delivery conditions, you are confirming that the delivery information you provide meets our third-party haulier conditions.

For further details, please visit our delivery page. If you have any doubts, please contact us for further details.

Cancellations, Returns & Support:

At Stone & Surfaces Direct, we aim to supply quality materials straight from the source and provide a straightforward, reliable service from order through to delivery.

We understand that circumstances can change and, on occasion, issues may arise. Whether you need to cancel an order, arrange a return, or report damaged goods, we aim to deal with matters fairly, efficiently, and transparently.

The information below explains how cancellations, returns, refunds, and product concerns are handled.

If you have any questions at any stage, please contact our customer support team.

Order Cancellation Policy

You may cancel your order provided we are notified within 12 hours of order placement by phone or email.

Orders are frequently prepared and arranged for dispatch quickly - often by the next working day - therefore early notice is essential.

Please note:

• Bespoke or custom orders are non-refundable and cannot be cancelled once confirmed, processed and shipped.
  
  
• We recommend retaining any surplus material, as natural stone and slate may vary in tone and texture, and exact matches are not guaranteed on reorders.
  
  Where cancellation is accepted before dispatch:
  • A full refund will be issued within 14 working days.
  
  If the order has already been dispatched:
  • Cancellation is no longer possible.
  • The order will continue through the courier network and standard returns terms will apply regardless if delivered. For more information, please see the Refunds & Refunds Policy below.
  

Please note that pallet deliveries often enter regional courier depots days before the scheduled delivery date and cannot be intercepted once in transit.

Returns & Refunds Policy:

If you wish to return goods after delivery, requests must be submitted within 7 calendar days of order receipt.

Returns may be accepted subject to approval and provided the goods meet the conditions outlined below.

To qualify for return:

• Goods must be unused, uninstalled, and remain in their original condition
• Goods must be suitable for resale and free from damage, weather exposure, cutting, staining, or signs of use
• Products must be securely repalletised and adequately protected for return transit
• Returned goods must be made available for collection from the original delivery location unless otherwise agreed

Approved returns will be refunded less:

• Return collection charges
• Original delivery charges and any postcode surcharge applied at the point of order (as shown within your order confirmation email)
• Any applicable restocking charges

Standard return collection charges start from:

• £60 per pallet (which covers the return cost back to source)
  
  
• Any outward delivery cost/surcharges, which cannot be recovered, outlined in your initial confirmation email, subject to pallet quantity

• Additional collection charges may apply for remote, restricted, or higher-cost postcodes

• Refunds will be processed within 14 working days following receipt and inspection of the returned goods
  
  

Important Return Conditions:

Please note:

• Return approval is not automatic and remains subject to inspection upon receipt

• For non-aggregate products (including paving, tiles, and bespoke stone), a restocking fee may apply to cover handling, inspection, and reintegration into stock

• Returns that arrive damaged, inadequately packaged, or not meeting the above conditions may be refused or subject to deductions

• We are under no obligation to accept return requests submitted outside the 7-day return period

• Collection and return charges remain payable even where a returned order results in a partial refund

• Successfully delivered orders that have been installed, used, or incorporated into completed projects are not eligible for return or refund

Additional Return Notes:

• For non-aggregate orders (e.g. paving, tiles, bespoke stone), a restocking fee may apply. This covers the cost of handling, inspection, and reintegration into stock
  
  
• Returns that do not meet our return conditions may be rejected or subject to deductions from the refund
  
  
• We are under no obligation to accept returns submitted outside the 7-day return window
  
  

Damaged/Faulty Goods:

We take care to ensure all materials are packed and dispatched to minimise the risk of damage during transport. However, if goods arrive damaged, faulty, or you believe there may be a quality concern, please notify us as soon as reasonably possible after delivery.

When reporting an issue, please provide:

• A clear description of the concern
• Photographic evidence of the affected goods
• Images of packaging and pallet condition where applicable
• Details of quantities affected where possible

Providing this information promptly helps us investigate efficiently and, where necessary, liaise with the courier, supplier, or manufacturer.

Once your claim has been reviewed, we may:

• Request additional information or photographs
• Arrange collection where appropriate
• Investigate with the relevant supplier and/or third-party courier
• Provide a suitable resolution based on the circumstances

Where collection is approved:

• Goods should remain in their original packaging where reasonably possible
• Items must be securely repalletised and protected to prevent transit damage
• Goods should be made available for collection from the original delivery location unless otherwise agreed
• Where original packaging is unavailable, suitable alternative protection must be provided

Replacement & Resolution Policy:

Where a claim is substantiated, our primary remedy is replacement of affected materials.

Where appropriate, we may provide:

• Replacement products
• Replacement quantities
• Collection and inspection of affected goods
• Alternative resolutions where reasonably suitable

For paving products:

• Confirmed transport damage will generally be resolved through free replacement tiles for the affected quantities
• Replacement materials are intended to enable completion of the original project

Please note:

• We do not offer refunds in place of replacement materials where replacement is available
• We do not buy back tiles from successfully delivered orders
• We do not offer refunds for broken tiles where installation has been completed and replacement materials are no longer required
• Materials should be checked prior to installation wherever reasonably possible
• Installation and completion of works constitutes acceptance and use of the goods supplied

Additional Warranty & Third-Party Material Provision:

Where replacement materials are offered under this policy, we aim to arrange replacement quantities as quickly as reasonably possible and, where operationally available, replacement materials may be dispatched using an expedited service - including next working day delivery options where appropriate - to help minimise disruption and avoid unnecessary delays to ongoing projects.

If a customer chooses not to proceed with the replacement process offered and instead purchases additional tiles, paving, or materials through a third party, supplier, installer, or alternative retailer, those purchases remain separate from the original order.

Please note:

• Any independently sourced materials will be subject to the supplier’s own terms, warranties, and returns policies

• Our product warranty and replacement obligations apply only to materials originally supplied by Stone & Surfaces Direct

• We cannot guarantee compatibility, batch continuity, colour matching, sizing, finish, or overall appearance with third-party supplied products

• Costs incurred through third-party purchases will not be reimbursed or credited where replacement materials were available through our replacement process

• Any subsequent claims relating to variation, replacement costs, installation outcomes, or completed works remain subject to the same inspection, acceptance, and completed project provisions contained within these terms

• Where products supplied by third parties are mixed with our materials and a defect, appearance issue, installation concern, or performance concern later arises, we may be unable to determine whether the issue relates to our supplied materials, third-party products, or installation methods

• In such circumstances, warranty claims may be limited or declined where the cause cannot reasonably be isolated to materials originally supplied by Stone & Surfaces Direct

Customers are strongly encouraged to contact us before sourcing additional materials elsewhere so that available replacement options can first be reviewed.

Breakage Guidance:

For paving, porcelain, natural stone, and similar non-aggregate products, we recommend allowing approximately 5-10% additional material to account for:

• Site cutting
• Installation wastage
• Handling
• Minor transport breakages
• Spares

In many cases, these materials remain suitable for cuts and finishing applications.

Where breakages exceed what would reasonably be expected and are reported appropriately, we will support customers with replacement materials where applicable to help complete the project.

Resolution Timeframes:

Approved replacements or refunds (where applicable) will normally be processed within 14 working days following completion of inspection and review.

Please note that deductions may apply where goods have been handled beyond what would ordinarily be permitted in a retail environment.

Need Help?

If you wish to report damaged goods, raise a quality concern, request support, or discuss your order, please contact our customer service team using the details in your order confirmation or via our Contact Us page.

Early and effective communication gives us the best opportunity to resolve concerns quickly and fairly.