Kandla Grey Sandstone 22mm Calibrated Handcut 600x600mm (56 Slabs 20.16 SQM) From £27.50/m2

Kandla Grey Sandstone 22mm Calibrated Handcut 600x600mm – 20.16 SQM (£549 / 20.16 SQM Pack / From £27.23/m2)

Bring contemporary elegance, reliable durability, and sophisticated cool-grey character to your outdoor landscape with premium Kandla Grey Sandstone 22mm Calibrated Handcut 600x600mm – 20.16 SQM (£549 / 20.16 SQM Pack / From £27.23/m2). Supplied by Paving and Slabs Ltd, this high-efficiency commercial project pack contains 56 individual calibrated flagstones calculated to layout exactly 20.16 square metres when installing with standard joint distributions. Hand-selected from top-tier sandstone formations in India, these traditional flags present a gorgeous, natural palette of soft mid-grey, slate tones, and subtle silver undertones that complement contemporary property architectures and modern UK garden schemes alike.

The 600x600mm square configuration stands as a favorite modern single-size format in British garden design. Its clean, balanced proportions let you lay down elegant grid or stretcher bond patterns that visually structure open gardens, courtyards, and terraces. Mechanically calibrated to a uniform 22mm thickness, these slabs deliver high-strength load bearing for pedestrian traffic while eliminating layout adjustments required by uneven, uncalibrated stones. Hand-split along natural cleavage lines, the resulting riven surface provides an organic texture and reliable slip resistance through rain, frost, and snow.

Colour: Soft mid-grey, slate tones, and subtle silver undertones.
Use: Ideal for patio slabs, modern terraces, garden slabs, courtyards, and contemporary garden landscaping.

Contemporary Design Flexibilities for Modern Landscapes

The clean proportions of 600x600mm square paving slabs are highly regarded for creating structured, contemporary grid layouts that pair seamlessly with bi-fold doors, grey aluminum window frames, and minimalist garden boundary fencing. The sophisticated grey palette creates a neutral ground plane that highlights vibrant planting schemes and modern outdoor furniture.

To combine this product with alternative design details, view our wider Paving Slabs library or explore specific Patio Slabs and Garden Slabs sections. Compare finishes by exploring our core Indian Sandstone Paving and Porcelain Paving stocks, or view specialized grids in our Grey Paving Slabs, Grey Porcelain Paving, 600x600 Paving Slabs, and 600x600 Porcelain Paving collections. For complete technical instructions, read our official Paving Installation Guide alongside our matching structural Drainage Guide. Explore other natural alternatives in our Slate Paving and Granite Paving and Setts collections, or discover borders via Walling and Edging and Planks and Setts.

Professional Installation Guide & Ongoing Maintenance

For enduring stability, calibrated sandstone flagstones must be set on a full, continuous wet mortar bed (mixed at a 4:1 sharp sand to cement ratio) layered over a well-compacted sub-base containing 100-150mm of MOT Type 1 aggregate. Never rely on loose sand layouts or spot-bedding points, as unsupported voids collect moisture, which triggers surface shifting and slab cracking during harsh winter frost cycles. Grout boundaries securely with an exterior-grade natural stone jointing mortar to actively prevent weed growth.

Ongoing maintenance is quick and easy due to the robust mineral matrix of real Indian sandstone. Periodically sweep loose leaf clutter and wash down annually with a specialized patio cleaner to eliminate seasonal moss or green algae. Applying a breathable, impregnating sealer after installation preserves the cool grey coloration against weathering and shields the stone from accidental oil or leaf stains. Learn additional care methods from our reference posts on how to clean and maintain paving slabs and how to clean and seal Indian sandstone.

Frequently Asked Questions