{"product_id":"10-stone-dust","title":"#10 Stone Dust (Granite Screenings)","description":"\u003cp\u003e\u003cstrong\u003e#10 Stone Dust (Granite Screenings) — The Spec'd Fines That Lock Walkways \u0026amp; Paver Joints\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e#10 Stone Dust is the quarter-minus by-product of crushing granite — passes a ⅜\" sieve, with a tight band of fines all the way through #200. It is the spec name (AASHTO M43 No. 10 \/ ASTM D448 No. 10) for what most yards call \"screenings\" or \"stone dust\": the material that compacts hard, finishes a walkway, locks pavers in their joints, and gives a stable footing under stepping stones. If a plan calls for \"screenings\" or \"#10,\" this is the material.\u003c\/p\u003e\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpec name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e#10 Screenings (AASHTO M43 \/ ASTM D448 size No. 10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCrushed granite screenings, native to the Boston area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePasses ⅜\" (¼\"-minus, including fines through #200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComposition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGranite chips, sand, and fines — angular, dry-screened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~2,700 lbs per cubic yard (~1.35 tons)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 yd³ covers ~80 sq ft at 4\" depth (compacted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlso known as\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStone dust, screenings, quarter-minus, pack, manufactured sand, decomposed granite (regional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold by\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe cubic yard, bulk dump truck delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat it's good for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFinal leveling course and joint fill under and between brick and concrete pavers\u003c\/li\u003e\n\u003cli\u003eCompacted walkway base (paths, garden walks, stepping-stone runs)\u003c\/li\u003e\n\u003cli\u003eRiding arena and round-pen footing (with sand blend)\u003c\/li\u003e\n\u003cli\u003eTop dressing on driveways for a smooth, locked surface\u003c\/li\u003e\n\u003cli\u003eSetting bed for flagstone and bluestone in dry-laid applications\u003c\/li\u003e\n\u003cli\u003eTrench backfill where fine, compactable material is wanted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGradation (AASHTO M43 \/ ASTM D448 — Size No. 10, typical band)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSieve size\u003c\/th\u003e\n\u003cth\u003e% passing\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e⅜\" (9.5 mm)\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#4 (4.75 mm)\u003c\/td\u003e\n\u003ctd\u003e85 – 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#8 (2.36 mm)\u003c\/td\u003e\n\u003ctd\u003e65 – 90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#16 (1.18 mm)\u003c\/td\u003e\n\u003ctd\u003e45 – 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#30 (600 µm)\u003c\/td\u003e\n\u003ctd\u003e30 – 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#50 (300 µm)\u003c\/td\u003e\n\u003ctd\u003e17 – 30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#100 (150 µm)\u003c\/td\u003e\n\u003ctd\u003e8 – 17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#200 (75 µm)\u003c\/td\u003e\n\u003ctd\u003e3 – 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHow much do I need?\u003c\/h3\u003e\n\u003cp\u003eFor a 200 sq ft walkway with a 2\" stone dust setting bed, plan on about 1.25 cubic yards. For paver joint sweep-in, a yard covers approximately 2,000–3,000 sq ft of paver field depending on joint width. Use the material calculator at the top of the page for custom dimensions, and round up 5–10% for compaction.\u003c\/p\u003e\n\u003ch3\u003eHow #10 compares to neighboring products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e#10 vs. #89:\u003c\/strong\u003e #10 packs solid (lots of fines). #89 drains (clean joint stone). Choose by whether the joint should compact or drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#10 vs. mason sand:\u003c\/strong\u003e Both are fine. Mason sand is rounder and used for mortar. #10 is angular and locks under compaction — better for walkway setting beds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#10 vs. dense pack:\u003c\/strong\u003e Dense pack (or #610) has a ¾\"–1\" top stone with fines. #10 is just the fines. Use #10 to top a dense-pack base.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue-gray color variant:\u003c\/strong\u003e Prefer a blue-gray color profile? See our \u003ca href=\"https:\/\/ottrsupply.com\/products\/blue-gray-granite-dust\" title=\"Blue-Gray Granite Dust\"\u003eBlue-Gray Granite Dust\u003c\/a\u003e — same #10 spec, blue-gray granite color.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is #10 stone dust used for?\u003c\/strong\u003e\u003cbr\u003eWalkway setting beds, paver joint fill, top dressing on driveways, and footing for stepping stones and flagstone. It compacts to a near-solid layer that locks the surface above it in place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs stone dust the same as #10?\u003c\/strong\u003e\u003cbr\u003eYes — \"stone dust\" and \"screenings\" are the trade names; #10 (AASHTO M43 \/ ASTM D448) is the formal spec name. Same material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes stone dust drain?\u003c\/strong\u003e\u003cbr\u003eNot well. The fines pack tight, so water sheds across the surface rather than percolating through. That's a feature for walkways (no settling) but a bug if drainage is needed — for drainage, use #57 or #89 instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use stone dust under pavers?\u003c\/strong\u003e\u003cbr\u003eFor dry-laid stepping stones and flagstone, yes — it is the standard setting bed. For interlocking concrete pavers, contemporary ICPI guidance prefers concrete sand for bedding; stone dust is still used for joint sweep-in on some installs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much does a cubic yard of stone dust weigh?\u003c\/strong\u003e\u003cbr\u003eAbout 2,700 lbs per cubic yard, or roughly 1.35 tons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you deliver stone dust in the Boston area?\u003c\/strong\u003e\u003cbr\u003eYes — same-day and next-day bulk delivery across Suffolk, Middlesex, Norfolk, and Plymouth Counties. No minimum order; flat-rate delivery shown in the price breakdown.\u003c\/p\u003e\n\u003cp\u003eSame-day and next-day bulk delivery, no minimum order. We deliver #10 stone dust across \u003ca href=\"https:\/\/ottrsupply.com\/collections\/suffolk-county-landscape-supply\" title=\"Suffolk County Landscape Supply\"\u003eSuffolk\u003c\/a\u003e, \u003ca href=\"https:\/\/ottrsupply.com\/collections\/middlesex-county-landscape-supply\" title=\"Middlesex County Landscape Supply\"\u003eMiddlesex\u003c\/a\u003e, \u003ca href=\"https:\/\/ottrsupply.com\/collections\/norfolk-county-landscape-supply\" title=\"Norfolk County Landscape Supply\"\u003eNorfolk\u003c\/a\u003e, and \u003ca href=\"https:\/\/ottrsupply.com\/collections\/plymouth-county-landscape-supply\" title=\"Plymouth County Landscape Supply\"\u003ePlymouth County\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003ePair with our \u003ca href=\"https:\/\/ottrsupply.com\/products\/dense-pack-075-to-minus\" title=\"Dense Pack\"\u003eDense Pack ¾\" to minus\u003c\/a\u003e or \u003ca href=\"https:\/\/ottrsupply.com\/products\/610-stone\" title=\"#610 Stone\"\u003e#610 Stone\u003c\/a\u003e as the compacted base below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder today — the spec'd screenings every walkway installer reaches for.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is #10 stone dust used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Walkway setting beds, paver joint fill, top dressing on driveways, and footing for stepping stones and flagstone. It compacts to a near-solid layer that locks the surface above it in place.\"}},{\"@type\":\"Question\",\"name\":\"Is stone dust the same as #10?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Stone dust and screenings are the trade names; #10 (AASHTO M43 \/ ASTM D448) is the formal spec name. Same material.\"}},{\"@type\":\"Question\",\"name\":\"Does stone dust drain?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not well. The fines pack tight, so water sheds across the surface rather than percolating through. For drainage, use #57 or #89 instead.\"}},{\"@type\":\"Question\",\"name\":\"Can I use stone dust under pavers?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For dry-laid stepping stones and flagstone, yes. For interlocking concrete pavers, ICPI guidance prefers concrete sand for bedding; stone dust is still used for joint sweep on some installs.\"}},{\"@type\":\"Question\",\"name\":\"How much does a cubic yard of stone dust weigh?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"About 2,700 lbs per cubic yard, or roughly 1.35 tons.\"}},{\"@type\":\"Question\",\"name\":\"Do you deliver stone dust in the Boston area?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — same-day and next-day bulk delivery across Suffolk, Middlesex, Norfolk, and Plymouth Counties. No minimum order; flat-rate delivery shown in the price breakdown.\"}}]}\u003c\/script\u003e","brand":"Ottr Landscape Supply","offers":[{"title":"Default Title","offer_id":48928230080740,"sku":"4105","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/8528\/9700\/files\/BlueStoneRockFines_c147985e-f4c7-4130-b16a-6454e65ca149.png?v=1778816733","url":"https:\/\/ottrsupply.com\/products\/10-stone-dust","provider":"Ottr Landscape Supply","version":"1.0","type":"link"}