3/8 Inch Crushed Stone for Patios in Oakton, VA

Planning a patio, a driveway rebuild, or a drainage run in Oakton? Virginia Rock Supply handles gravel and aggregate delivery in Oakton, VA, so you order the material once and get it dropped where the work is. Most jobs here start with 21A for the base. What you set on top of that base is what keeps the patio flat.

Materials for Oakton Projects

On Fairfax County clay, the bedding layer is what keeps a patio level. Get it right and pavers sit flat for years. Get it wrong and you are resetting them after the first freeze-thaw cycle.

For bedding under pavers and flagstone, screenings are the standard choice. The fine, angular grit packs to a hard, level plane that locks each unit in place. Spread it an inch thick over a compacted base and screed it flat before you set stone.

Some crews prefer 3/8" Crushed Stone under thicker slabs or where water needs to move through the bedding layer. It drains better than screenings and still beds down tight.

The base beneath all of it is 21A. For a patio, spread it in lifts and compact each one. Where the ground stays wet, 21B is the coarser, lower-fines option; it drains a little better but packs less tightly.

For the joints and any tight detail work, #89 Crushed Stone sweeps into narrow gaps cleanly. Masonry work around the patio, like a brick border or a grill station, calls for Mason Sand.

Ground and Conditions in Oakton

Oakton sits in Fairfax County, where the ground is mostly clay-rich soil weathered from Piedmont rock. Clay takes in water slowly. When a summer thunderstorm dumps rain fast, most of it runs off instead of soaking in.

A thin base shows that failure quickly. The clay underneath stays soft, the base pumps, and within a season you have ruts, low spots, and pavers rocking underfoot. The fix is depth and compaction, not more surface stone.

Excavate down past the topsoil, then build the 21A base in lifts and compact each one before the next goes down. That gives you a base that bridges over soft clay instead of sinking into it. Where a patio sits low or water collects against the house, add a drainage layer of #57 stone or #8 crushed stone so water has somewhere to go.

Timing matters too. Frozen ground in midwinter and saturated clay after a thaw will not compact properly. Frost depth in Fairfax County is 24 inches, and freeze-thaw heave in gravel and base is a real winter factor here.

Delivery to Oakton and the Surrounding Area

Order online by the ton or by the cubic yard, whichever you are comfortable with. Bulk material is sold by weight because that is how it leaves the yard, but most project math starts in yards.

To estimate, take your length times width times depth in feet, then divide by 27 to get cubic yards. Enter the patio length, width and base depth in the calculator to see how much compacted 21A the job takes. Order a little over; compaction always eats volume.

Delivery covers Oakton and the rest of Fairfax County, including Centreville, Reston, McLean, Burke and Annandale. Have the drop spot clear and reachable, and tell us if the truck needs to stay off the driveway.

Check Your Numbers Before You Order

Run your patio or driveway dimensions through the calculator to see the tonnage and yardage your job actually needs. Then order 21A, screenings, or washed stone for delivery to your Oakton address and get the material on site when your crew is ready.