Gray Granite ⅜"

Gray Granite ⅜" — Small-Format Gray Stone for Walkways & Detail Work

Also sold as #89 Stone (Crushed Granite) — the contractor spec name for the same material (ASTM C33 / AASHTO M43 No. 89).

Gray Granite ⅜" is the smaller, foot-friendlier version of our classic ¾" gray gravel. Same angular gray tone, same durability, but in a size that walks comfortably along garden paths and finishes drip edges and decorative borders without feeling chunky. When the project asks for the gray gravel look at a more refined scale, this is the size to spec.

At a glance

What it's good for

• Garden walkways, side paths, and stepping-stone fill
• Drip edges around foundations, patios, and walkway perimeters
• Decorative borders along garden beds in modern hardscape designs
• Fine drainage layers under shallow trenches and downspout dispersal

How much do I need?

A 3' × 30' garden path at 3" depth needs about 0.85 cubic yards. For a 150 sq ft drip edge along a foundation at 3", plan on about 1.4 yards. Decorative bed border (6" wide, 75' long, 3" deep) takes only about 0.35 yards — the small format goes a long way on detail work.

How Gray Granite ⅜" compares

• vs. Gray Granite ¾": ¾" is the chunkier driveway/base size. ⅜" walks more comfortably and looks more refined on garden paths.
• vs. Gray Granite Stone Dust / #10: Stone dust has high fines and packs tight. ⅜" is clean and drains. Use ⅜" where you want texture, dust where you want a solid surface.
• vs. Blue-Gray Granite ⅜": Same size, different color. Blue-gray reads cooler with a steel undertone; gray is the classic neutral pick.
• vs. Riverbed ⅜": Riverbed is smooth, rounded, naturally tumbled. ⅜" gray granite is angular and crushed — looks more architectural, locks in place under foot traffic.

Frequently asked questions

What is Gray Granite ⅜" used for?
Mostly four jobs: garden walkways and stepping-stone fill, drip edges around foundations and patios, decorative borders along beds, and fine drainage in shallow trenches. It is the small-format pick when ¾" feels too chunky.

Is Gray Granite ⅜" the same as #89 stone?
Yes — gradationally, ⅜" gray crushed granite meets ASTM C33 / AASHTO M43 No. 89. Contractors who spec permeable paver joint fill ask for #89; the residential name for the same material is Gray Granite ⅜".

Can I walk on Gray Granite ⅜" barefoot?
It is more comfortable than ¾" but it is still crushed (angular). For barefoot-friendly garden paths, smooth Riverbed ⅜" is the better pick.

Will Gray Granite ⅜" fill paver joints?
For permeable interlocking paver joints, yes — this is the spec'd "#89 joint stone" used in PICP installs. For traditional pavers, use polymeric sand instead.

How much does a cubic yard of Gray Granite ⅜" weigh?
About 2,500–2,700 lbs per cubic yard, or roughly 1.25–1.35 tons.

Do you deliver to my town?
Same-day and next-day bulk delivery across Suffolk, Middlesex, Norfolk, and Plymouth Counties.

Same-day and next-day bulk delivery, no minimum order. We deliver ⅜" gray granite across Norfolk, Plymouth, Middlesex, and Suffolk County.

Pair with our gray granite ¾" for chunkier coverage on the same site, or our dense pack ¾" to minus for the compacted walkway base layer underneath.

Order today — the small-format gray stone for walkways, edges, and detail work.

• 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 →