#89 Stone (Crushed Granite)
#89 Stone (Crushed Granite)
Quantity
Couldn't load pickup availability
Product Description
Product Description
#89 Stone (Crushed Granite) — The Small-Format Spec Stone for Paver Joints & Permeable Bases
#89 Stone is the ⅜"-top crushed granite that contractors specify by name for permeable paver joints, walkway finishes, and tight-pack drainage layers. Native Boston-area granite, angular, washed, with a tight ASTM C33 / AASHTO M43 No. 89 gradation — small enough to lock pavers, large enough to drain. If a permeable-pavement detail calls for "#89 joint stone," this is it.
At a glance
| Spec name | #89 Stone (ASTM C33 / AASHTO M43 size No. 89) |
| Material | Crushed granite, native to the Boston area |
| Nominal size | ⅜" to fine (passes ½" sieve, retained on #50) |
| Composition | Angular crushed granite, washed, clean of fines below #50 |
| Weight | ~2,800 lbs per cubic yard (~1.4 tons) |
| Coverage | 1 yd³ covers ~80 sq ft at 4" depth |
| Also known as | 89s, AASHTO 89, joint stone, chip stone, permeable paver joint fill, ⅜" clean |
| Sold by | The cubic yard, bulk dump truck delivery |
What it's good for
- Permeable interlocking paver joints (the spec'd "#89 joint stone")
- Permeable paver leveling course (top of the open-graded base)
- Walkway finish layer over a compacted base
- Fine drainage stone near foundations and small culverts
- Septic system top dressing
- Decorative ground cover where a small, uniform stone is wanted
Gradation (ASTM C33 / AASHTO M43 — Size No. 89)
| Sieve size | % passing |
|---|---|
| ½" (12.5 mm) | 100 |
| ⅜" (9.5 mm) | 90 – 100 |
| #4 (4.75 mm) | 20 – 55 |
| #8 (2.36 mm) | 5 – 30 |
| #16 (1.18 mm) | 0 – 10 |
| #50 (300 µm) | 0 – 5 |
How much do I need?
For permeable paver joints, plan on about ½ cubic yard per 200 sq ft of paver field (after sweeping). For a 2" leveling course over an open-graded base, plan on about 1.2 yd³ per 200 sq ft. Use the material calculator at the top of the page for custom dimensions, and round up 5–10% for spread loss and re-sweep.
How #89 compares to neighboring sizes
- #89 vs. #8: #8 is slightly larger (no #50-fines portion). #89 is the more common joint spec; #8 is the more common bedding spec.
- #89 vs. #57: #57 is the 1"-top sibling. Use #57 below #89 in a permeable system.
- #89 vs. stone dust: Stone dust (#10) has more fines and packs tight. #89 drains. They are not interchangeable for permeable installs.
- Residential equivalent: Same material as our Gray Crushed Rock ⅜" — two ways to ask for the same product.
Frequently asked questions
What is #89 stone used for?
Primarily three jobs: filling the joints on permeable interlocking pavers (PICP), the leveling course directly under permeable pavers, and small-stone drainage near foundations or septic systems. It is the spec'd choice when "#89 joint stone" appears on a plan.
Can I use #89 in regular pavers (non-permeable)?
For traditional pavers, use polymeric sand for joints and concrete sand for bedding. #89 is the right call for permeable systems only.
How does #89 differ from #8 stone?
#89 includes more of the fine-end material (passes through #50 sieve at 0–5%). #8 has a narrower, slightly larger band. Most PICP details accept either, but #89 is what most permeable spec sheets call out.
How much does a cubic yard of #89 stone weigh?
About 2,800 lbs per cubic yard, or roughly 1.4 tons.
Do you deliver #89 stone in the Boston area?
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.
Same-day and next-day bulk delivery, no minimum order. We deliver #89 stone across Suffolk, Middlesex, Norfolk, and Plymouth County.
Pair with our #57 Stone as the open-graded base layer below, or our Concrete Sand for traditional paver bedding.
Order today — the spec'd joint stone for permeable paver systems.
Detailed Specs & Gradation
Detailed Specs & Gradation
Spec identity
| Standard | ASTM C33 / AASHTO M43 — Size No. 89 |
| Material | Crushed granite, native to the Boston area |
| Nominal size | ⅜" to fine (passes ½", retained on #50) |
| Weight | ~2,800 lbs/yd³ (~1.4 tons) |
Gradation (ASTM C33 / AASHTO M43 — Size No. 89)
| Sieve size | % passing |
|---|---|
| ½" (12.5 mm) | 100 |
| ⅜" (9.5 mm) | 90 – 100 |
| #4 (4.75 mm) | 20 – 55 |
| #8 (2.36 mm) | 5 – 30 |
| #16 (1.18 mm) | 0 – 10 |
| #50 (300 µm) | 0 – 5 |
Delivery Info
Delivery Info
- Same-day & next-day delivery available — weekends fill fast, order early.
- Curbside or on-property drop — let us know at checkout.
- Up to 6 yds per load for dense materials (gravel, soil, rock, sand) — mulch loads carry up to 10 yds. $100 flat rate, no minimum order.
- Job site delivery available — live load tickets and signed BOLs on request.
- Questions? Call (617) 645-0987 or see full delivery info →
Share
