{"product_id":"20mm-wash-rock-calgary","title":"20mm (3\/4\") Washed Rock — Bulk Delivery Calgary","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e20mm washed rock is one of our most versatile materials — clean, consistent, and the right size for a wide range of Calgary landscaping and drainage projects. The ¾ inch sizing is a Calgary standard — it's what most contractors specify for drainage, what most homeowners reach for on driveways, and what works across more applications than any other single rock size we carry. If you're not sure what size to order, 20mm washed rock is usually the right answer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat it's used for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDriveways and parking pads\u003c\/strong\u003e — the most popular driveway rock size in Calgary. Compacts well, handles vehicle traffic, and gives a clean, finished appearance\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePathways and walkways\u003c\/strong\u003e — easy to spread, stays in place underfoot, and looks natural alongside garden beds and lawn edges\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFrench drains and drainage systems\u003c\/strong\u003e — the washed surface keeps void space open and water flowing freely, without clogging over time\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRetaining wall backfill\u003c\/strong\u003e — allows water to drain freely behind walls, reducing hydrostatic pressure and extending wall life\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGarden beds and decorative ground cover\u003c\/strong\u003e — cleaner and brighter than unwashed rock, the washed finish gives beds a polished, maintained look year-round\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConcrete aggregate\u003c\/strong\u003e — the consistent ¾ inch sizing is a standard concrete mix aggregate for slabs, footings, and structural pours\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBase material under pavers and flagstone\u003c\/strong\u003e — used as a free-draining sub-base layer before bedding sand and surface installation\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eErosion control\u003c\/strong\u003e — placed on slopes, banks, and bare soil areas to prevent washout during Calgary's spring melt and heavy rain events\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e20mm washed vs 40mm washed — which size do you need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe 20mm size is more versatile and works in tighter spaces — better for pathways, decorative beds, and standard driveways. The 40mm size has more void space between rocks — better for heavy drainage applications and larger open areas. When in doubt, 20mm is the safer all-purpose choice.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow much do you need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFor a 4-inch driveway layer, budget roughly 1.2 cubic yards per 100 square feet. Use our free calculator for an exact number.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e👉 \u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/newstandardbulk.ca\/pages\/landscape-material-calculator\"\u003eMaterial Calculator\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhere we deliver\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSame-day bulk delivery across Calgary, Airdrie, Chestermere, Cochrane, Okotoks, and Langdon.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e📞 \u003cstrong\u003e403-510-9011\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"New Standard Landscape Supplies Ltd.","offers":[{"title":"1 Yard","offer_id":44872139538752,"sku":null,"price":56.0,"currency_code":"CAD","in_stock":true},{"title":"2 Yard","offer_id":45058617835840,"sku":"","price":112.0,"currency_code":"CAD","in_stock":true},{"title":"3 Yard","offer_id":45058617868608,"sku":"","price":168.0,"currency_code":"CAD","in_stock":true},{"title":"4 Yard","offer_id":45058617901376,"sku":"","price":224.0,"currency_code":"CAD","in_stock":true},{"title":"5 Yard","offer_id":45058617934144,"sku":"","price":280.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/1489\/6960\/files\/washed-rock-driveway-calgary-bulk-gravel.heic?v=1778127369","url":"https:\/\/newstandardbulk.ca\/products\/20mm-wash-rock-calgary","provider":"New Standard Landscape Supplies Ltd.","version":"1.0","type":"link"}