{"product_id":"kandla-grey-sandstone-22mm-handcut-600x600mm","title":"Kandla Grey Sandstone 22mm Calibrated Handcut 600x600mm (56 Slabs 20.16 SQM) From £27.50\/m2","description":"\u003c!-- Breadcrumb Schema Markup --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 1,\n      \"name\": \"Home\",\n      \"item\": \"https:\/\/pavingandslabs.co.uk\/\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 2,\n      \"name\": \"Natural Stone Paving\",\n      \"item\": \"https:\/\/pavingandslabs.co.uk\/collections\/natural-stone-paving\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 3,\n      \"name\": \"Indian Sandstone\",\n      \"item\": \"https:\/\/pavingandslabs.co.uk\/collections\/indian-sandstone\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 4,\n      \"name\": \"Kandla Grey 600x600 Handcut Sandstone Paving Slabs (56 Slabs, 20.16 SQM)\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003ch2\u003eKandla Grey Sandstone 22mm Calibrated Handcut 600x600mm – 20.16 SQM (£549 \/ 20.16 SQM Pack \/ From £27.23\/m2)\u003c\/h2\u003e\n\u003cp\u003eBring contemporary elegance, reliable durability, and sophisticated cool-grey character to your outdoor landscape with premium \u003cstrong\u003eKandla Grey Sandstone 22mm Calibrated Handcut 600x600mm – 20.16 SQM (£549 \/ 20.16 SQM Pack \/ From £27.23\/m2)\u003c\/strong\u003e. Supplied by \u003cstrong\u003ePaving and Slabs Ltd\u003c\/strong\u003e, this high-efficiency commercial project pack contains \u003cstrong\u003e56 individual calibrated flagstones\u003c\/strong\u003e calculated to layout exactly \u003cstrong\u003e20.16 square metres\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eColour\u003c\/strong\u003e: Soft mid-grey, slate tones, and subtle silver undertones.\u003cbr\u003e\u003cstrong\u003eUse\u003c\/strong\u003e: Ideal for \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/patio-slabs\" title=\"Patio Slabs\"\u003epatio slabs\u003c\/a\u003e, modern terraces, \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/garden-slabs\" title=\"Garden Slabs\"\u003egarden slabs\u003c\/a\u003e, courtyards, and contemporary garden landscaping.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #fafafa; padding: 15px; border-radius: 8px; margin: 20px 0; border: 1px solid #e3e3e3;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #111; font-size: 16px;\"\u003eKandla Grey 600x600 20.16 SQM Crate Quick Specs\u003c\/h3\u003e\n\u003cul style=\"column-count: 2; list-style-position: inside; margin-bottom: 0; font-size: 14px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct SKU:\u003c\/strong\u003e KG-60-60-22MM-CAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Price \u0026amp; Coverage:\u003c\/strong\u003e £549.00 (20.16 SQM Pack \/ 56 Slabs \/ £27.23 per m2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e56 Slabs Trade Pack:\u003c\/strong\u003e Perfectly optimized for a balanced 20.16 SQM coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare 600x600 Format:\u003c\/strong\u003e Clean, symmetrical aesthetics for modern architectural layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated 22mm Depth Profile:\u003c\/strong\u003e Flat ground bases for fast, uniform bedding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural Riven Texture:\u003c\/strong\u003e Premium anti-slip safety in damp British weather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eContemporary Design Flexibilities for Modern Landscapes\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eTo combine this product with alternative design details, view our wider \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/paving-slabs\"\u003ePaving Slabs\u003c\/a\u003e library or explore specific \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/patio-slabs\"\u003ePatio Slabs\u003c\/a\u003e and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/garden-slabs\"\u003eGarden Slabs\u003c\/a\u003e sections. Compare finishes by exploring our core \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/indian-sandstone\"\u003eIndian Sandstone Paving\u003c\/a\u003e and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/porcelain-paving\"\u003ePorcelain Paving\u003c\/a\u003e stocks, or view specialized grids in our \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/grey-paving-slabs\"\u003eGrey Paving Slabs\u003c\/a\u003e, \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/grey-porcelain-paving\"\u003eGrey Porcelain Paving\u003c\/a\u003e, \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/600-600-paving-slabs\"\u003e600x600 Paving Slabs\u003c\/a\u003e, and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/600-600-porcelain-paving\"\u003e600x600 Porcelain Paving\u003c\/a\u003e collections. For complete technical instructions, read our official \u003ca href=\"https:\/\/pavingandslabs.co.uk\/pages\/installation-guide\"\u003ePaving Installation Guide\u003c\/a\u003e alongside our matching structural \u003ca href=\"https:\/\/pavingandslabs.co.uk\/pages\/drainage-guide\"\u003eDrainage Guide\u003c\/a\u003e. Explore other natural alternatives in our \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/slate-paving\"\u003eSlate Paving\u003c\/a\u003e and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/granite-paving-and-setts\"\u003eGranite Paving and Setts\u003c\/a\u003e collections, or discover borders via \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/walling-and-edging\"\u003eWalling and Edging\u003c\/a\u003e and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/collections\/edging-planks-and-setts\"\u003ePlanks and Setts\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eProfessional Installation Guide \u0026amp; Ongoing Maintenance\u003c\/h2\u003e\n\u003cp\u003eFor enduring stability, calibrated sandstone flagstones must be set on a \u003cstrong\u003efull, continuous wet mortar bed\u003c\/strong\u003e (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.\u003c\/p\u003e\n\u003cp\u003eOngoing 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 \u003ca href=\"https:\/\/pavingandslabs.co.uk\/blogs\/latest-news\/how-to-clean-and-maintain-paving-slabs-long-lasting-patio-tips\"\u003ehow to clean and maintain paving slabs\u003c\/a\u003e and \u003ca href=\"https:\/\/pavingandslabs.co.uk\/blogs\/latest-news\/how-to-clean-and-seal-indian-sandstone-to-have-a-beautiful-patio\"\u003ehow to clean and seal Indian sandstone\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"border-top: 1px solid #ddd; margin-top: 30px; padding-top: 20px;\"\u003e\n\u003ch3\u003eTechnical Data Matrix\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa; width: 30%;\"\u003eProduct Style\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePremium 22mm Calibrated Indian Sandstone Square Flagstones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa;\"\u003ePallet Quantity\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e56 Individual Slabs (Securely Packaged Component Bundle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa;\"\u003eProject Coverage\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e20.16 Square Metres (SQM) Including Jointing Gaps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa;\"\u003eFace Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e600mm x 600mm Square Format Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa;\"\u003eThickness Calibration\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e22mm Calibrated Outdoor Grade Profile (Flat Base)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; font-weight: bold; background-color: #fafafa;\"\u003eUK Logistics\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003ePalletised Delivery Fleet Handling All Mainland United Kingdom Postcodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch4\u003eDoes Kandla Grey Indian Sandstone need sealing?\u003c\/h4\u003e\n\u003cp\u003eYes, sealing is essential — not optional — for Kandla Grey sandstone installed outdoors in the UK. As a porous natural material, unsealed sandstone absorbs moisture and organic staining over time, and UK freeze-thaw cycles cause progressive damage to unsealed stone as absorbed moisture expands on freezing. An impregnating breathable sealer applied after installation prevents both problems. Apply before grouting to avoid grout haze staining the stone surface. Reseal every two to three years to maintain effective protection.\u003c\/p\u003e\n\u003ch4\u003eIs Kandla Grey sandstone slippery when wet?\u003c\/h4\u003e\n\u003cp\u003eNo. The naturally riven surface texture of Kandla Grey sandstone provides inherent structural slip resistance built into the stone itself rather than applied as a surface coating. The textured face channels water away from underfoot contact points and maintains safe traction in wet conditions. This slip resistance does not reduce with age or wear — it is one of the key practical advantages of naturally riven stone over smooth or polished finish alternatives.\u003c\/p\u003e\n\u003ch4\u003eWhat does calibrated 22mm mean?\u003c\/h4\u003e\n\u003cp\u003eCalibrated 22mm means each slab has been machine-ground on the reverse to a precise and consistent depth of 22mm. Unlike uncalibrated stone where individual slab thickness varies and each piece requires separate bedding adjustment, calibrated slabs sit flat on a consistent mortar bed, producing a level, professional finished surface more quickly and reliably.\u003c\/p\u003e\n\u003ch4\u003eHow many slabs do I need for a 20.16 square metre patio?\u003c\/h4\u003e\n\u003cp\u003eThis pack contains 56 slabs covering exactly 20.16 square metres at standard joint spacing. Ordering this single pallet factors in the recommended cutting and edge layout wastage allowance for standard patio footprints.\u003c\/p\u003e\n\u003ch4\u003eHow does Kandla Grey sandstone perform through UK winters?\u003c\/h4\u003e\n\u003cp\u003eProperly installed and sealed Kandla Grey sandstone performs reliably through UK winter conditions including persistent frost, heavy rainfall and wet-dry cycles. The sealer prevents moisture penetrating the stone's pores, eliminating the freeze-thaw damage mechanism. A correctly prepared MOT Type 1 sub-base at adequate depth — 150mm minimum on stable ground, 200mm on heavy clay — provides foundation stability that prevents surface displacement from seasonal ground movement.\u003c\/p\u003e\n\u003ch4\u003eCan these slabs be used for a driveway?\u003c\/h4\u003e\n\u003cp\u003eThese standard 22mm patio slabs are specified for pedestrian patio and pathway applications. Driveway use requires a minimum 40mm slab thickness and a reinforced sub-base specification designed for vehicle loading. See our driveway paving collection for correctly rated products and specifications.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between 600x600mm and 900x600mm Kandla Grey slabs?\u003c\/h4\u003e\n\u003cp\u003e600x600mm square slabs offer a clean, symmetrical grid layout that is exceptionally popular in modern architectural designs and smaller gardens. 900x600mm rectangular slabs provide larger expansive lines that visually lengthen open spaces and long terraces. Both share the same premium Kandla Grey stone quality and 22mm calibrated thickness.\u003c\/p\u003e\n\u003ch4\u003eWhat laying pattern works best for 600x600mm slabs?\u003c\/h4\u003e\n\u003cp\u003eThe most popular laying patterns for 600x600mm square slabs are a uniform grid pattern (stack bond) for a sharp, ultra-modern look, or a half-offset stretcher bond pattern for traditional running lines. Always use a full mortar bed rather than spot bedding for slabs of this size. See our installation guide for complete step-by-step instructions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Paving and Slabs","offers":[{"title":"Default Title","offer_id":68057605112062,"sku":"PS-KDG-SANDSTONE-60-60","price":549.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/pavingandslabs.co.uk\/products\/kandla-grey-sandstone-22mm-handcut-600x600mm","provider":"Paving and Slabs","version":"1.0","type":"link"}