Crushed Drain Rock 3/4"
Best for: The go-to size for most French drains and wall backfill.
Type
Crushed drain rock
Size
3/4" — standard / mid-size
Shape
Angular, washed
Drainage
Excellent
Overview
About Crushed Drain Rock 3/4"
Crushed drain rock three-quarter inch is the industry-standard size for drainage — big enough to create large, free-flowing voids that move water fast, small enough to place easily and stay where you put it. Angular and washed clean of fines, it resists the silting-up that chokes drainage over time, which is exactly why it is the default specification for French drains, footing and foundation drains, and the gravel envelope behind retaining walls. Pair it with perforated pipe and filter fabric for a classic French drain, or use it on its own as wall backfill to relieve hydrostatic pressure and keep water off your structure. When you are not sure which size to order, this is the one — the proven workhorse of the drain-rock family.
- ✓Clean angular ¾" crushed rock.
- ✓The industry standard for French drains.
- ✓Excellent flow, minimal clogging.
- ✓The everyday, do-it-all drainage size.
Crushed drain rock 3/4" is the middle and most-used size in the drain-rock family — big enough to create large, free-flowing voids that move water fast, small enough to place easily and stay put. Angular and washed clean of fines, it resists the silting-up that chokes drainage over time, which is exactly why it is the default specification for French drains, footing and foundation drains, and the gravel envelope behind retaining walls.
Pair it with perforated pipe and filter fabric for a classic French drain, or use it on its own as wall backfill to relieve hydrostatic pressure and keep water off your structure. It is the size to order when you are not sure which to pick. Sold by the ton at roughly 1.4 tons per cubic yard, about 110 sq ft per ton at 2". (For fine bedding go down to 3/8"; for deep, high-volume drainage step up to 1½".)
Specifications
The details
- Type
- Crushed drain rock
- Size
- 3/4" — standard / mid-size
- Shape
- Angular, washed
- Drainage
- Excellent
- Unit weight
- ≈ 1.4 tons / cu yd
- Sold by
- Ton
Applications
Common uses
- ✓ French drains
- ✓ Behind retaining walls
- ✓ Footing & foundation drains
- ✓ Trench & pipe drainage
- ✓ Drywells & infiltration pits
- ✓ General drainage gravel
Need Crushed Drain Rock 3/4" on site?
Priority delivery across French Camp & San Joaquin County.
Questions
Crushed Drain Rock 3/4" — FAQ
- What size rock is best for a French drain?
- 3/4" crushed drain rock is the industry standard — big voids for fast flow, angular and washed so it resists silting and clogging.
- Do I need filter fabric with drain rock?
- For French and footing drains, yes — wrapping the rock and perforated pipe in filter fabric keeps soil fines out and the drain flowing for the long term.
- Can I use 3/4" behind a retaining wall?
- Yes — it is the standard backfill gravel behind walls, relieving water pressure that would otherwise push on the structure.
More materials
Explore the rest of the yard
QuarryVirgin Baserock (AB Class 2)
Virgin baserock is the structural backbone of paved construction — a quarry-fresh Class 2 aggregate base crushed from solid stone and graded continuously from three-quarter inch down to fines. Because every particle is freshly fractured and angular, the blend keys together and compacts into a dense, rigid platform that distributes traffic loads down to the subgrade without rutting, pumping or settling. It is the same material specified beneath California highways, parking structures and building pads — certified to a minimum R-value of 78 and a sand equivalent of 22 under Caltrans Standard Specifications Section 26. When your project demands a clean, certified, load-bearing foundation engineered to perform for decades, this is the base to build on.
QuarryWash Baserock
Wash baserock delivers the structural performance of Class 2 aggregate base with a cleaner, free-draining character. It is the same crushed base material run through a wash plant to flush out excess silt and clay fines — the result is a low-dust product on the jobsite and a more permeable platform that lets water move through rather than perch on top. It still keys together and compacts under pavement and pads, but it is the smarter specification wherever drainage, cleanliness and a tidy backfill matter as much as raw stiffness. Crews choose it under permeable pavers, behind retaining walls and as pipe and utility base where washed material is preferred or required.
RecycledRecycled Base (Class II)
Recycled base is reclaimed concrete and asphalt, crushed and screened back into a graded three-quarter-inch aggregate that meets Caltrans Class II strength — engineered performance at a materially lower cost. The crushing process leaves the same angular, interlocking particle shape as virgin rock, so it compacts into a hard, stable platform that carries load just like quarried base, with a mild self-cementing tendency that can stiffen it further over time. For the vast majority of driveway, lot and pad work it performs on par with new base while diverting demolition debris from the landfill — a genuine sustainability advantage that can also support green-building credits. Produced on site at our French Camp yard, supply stays steady, local and competitively priced.