Aubrey Gravel Co
Aubrey, TX · Denton County
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Resource Guide • Denton County TX

Gravel Types for Denton County TX Driveways

Which gravel material works best on Aubrey Series clay soil? A practical comparison for property owners planning a driveway in Denton County.

Why Material Choice Matters on Denton County Clay

Denton County's soil, specifically the Aubrey Series that characterizes the Aubrey TX area, is a clay-heavy formation with 40 to 60 percent clay content, moderate permeability, and seasonal expansion and contraction. Not every gravel material handles that well. Round materials scatter and sink. Fine materials with no structure disappear into the clay. The materials that perform are angular, interlocking aggregates that compact into a stable layer and don't shift under vehicle loads.

The right answer for most Denton County driveways is a two-layer system: compacted crusher run for the structural base and crushed limestone for the wearing surface. That combination handles the clay, the rainfall (39 inches annually in Aubrey), and the temperature extremes that characterize North Texas weather.

Gravel Material Comparison for Denton County

Crushed Limestone
Wearing surface
Best for surface

Angular, interlocks on Aubrey clay, locally sourced. Gets firmer over time. Standard choice for residential and rural driveways throughout Denton County.

Best for: Surface layer, 2-3 inches over base

Crusher Run (Road Base)
Structural base
Best for base

Crushed stone and fines blend. Compacts into a dense, semi-rigid layer. The structural foundation that prevents rutting on clay soil.

Best for: Base layer, 4-6 inches compacted

#57 Gravel
Wearing surface
Good

Larger aggregate (3/4-1.5 in.), good drainage. Slightly looser feel than crushed limestone. Useful where drainage is the priority.

Best for: Surface on well-drained ground

Caliche
Base or surface
Good (when available)

Calcium carbonate material that hardens over time. Excellent for ranch roads and access tracks. Less common in Denton County than Central Texas.

Best for: High-traffic access roads

Decomposed Granite
Surface (light use only)
Fair

Fine-grained, needs edging to contain. Good for decorative paths and low-traffic use. Displaces under regular vehicle loads.

Best for: Garden paths, light-use surfaces

Pea Gravel
Decorative only
Poor for driveways

Round stones that roll and scatter under vehicle loads. High maintenance, sinks into clay. Not recommended for any driveway that sees vehicle traffic.

Best for: Landscaping and drainage beds only

The Standard Aubrey TX Driveway Layer System

Every properly built gravel driveway in Aubrey uses the same two-layer system, regardless of which surface material the owner prefers:

  1. 1
    Compacted crusher run base (4-6 inches)

    Spread in lifts and compacted with a roller or plate compactor. This is the structural layer that sits directly on the Aubrey clay. The fines in crusher run fill the voids between the aggregate and compact into a dense surface. Base depth depends on expected vehicle loads: 4 inches for standard residential, 6 inches for trucks, equipment, or RVs.

  2. 2
    Crushed limestone wearing surface (2-3 inches)

    The top material spread over the compacted base. Crown-graded to shed water off the edges. Three-quarter-inch angular crush is the standard sizing, large enough to stay on the surface, small enough to pack firm. This is the material that wears over time and gets replenished with annual top-dressing.

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Quick Reference
  • Best surface material
    Crushed limestone
  • Best base material
    Crusher run / road base
  • Avoid
    Pea gravel, round river rock
  • Caution
    Decomposed granite (light use only)
  • Local supplier
    Denton Sand & Gravel, Sanger TX
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Denton County Gravel Types: Common Questions

What is crusher run and why is it used as a driveway base in Denton County?
Crusher run, also called road base or TxDOT Item 247, is a blend of crushed stone aggregate and stone dust (fines) produced in the same pass as the larger crush. The fines fill the voids between larger particles when compacted, creating a dense, semi-rigid layer. On Aubrey Series clay, which has 40 to 60 percent clay content and slow permeability, crusher run is the standard structural base layer for driveways. It compacts tightly and provides a stable foundation that prevents the wearing surface from sinking into the clay.
What is the difference between crushed limestone and #57 gravel?
Both are crushed stone, but they differ in size and gradation. Crushed limestone for driveways is typically a 3/4-inch angular product. Number 57 gravel is a larger aggregate (3/4 to 1.5 inches) with a more uniform particle size and fewer fines than crushed limestone. Number 57 drains well but can feel looser underfoot because the more uniform size doesn't pack as tightly as crushed limestone with fines. For Denton County driveways, crushed limestone is generally preferred for the wearing surface because it compacts tighter and stays put better under vehicles.
What is caliche and is it a good driveway material for Aubrey TX?
Caliche is a naturally occurring calcium carbonate material found in calcareous soils. When compacted, caliche hardens to a concrete-like surface over time as the calcium carbonate re-cements. It's commonly used for ranch roads in parts of Central and West Texas. In Denton County, it's less common than quarry-sourced crushed limestone, but can be a cost-effective option when locally available. The hardening characteristic makes it excellent for high-traffic access roads.
Is decomposed granite a good option for Aubrey driveways?
Decomposed granite works for lightly used paths and decorative applications. It doesn't hold up well under regular vehicle loads on Denton County clay, it tends to displace and scatter, especially without rigid edging. On sloped surfaces or driveways that see regular truck traffic, decomposed granite isn't the right material. It's fine for a side path; it's not suitable for a 200-foot driveway on an acreage property that gets daily vehicle use.
Can I mix different gravel types on the same driveway?
Yes, and the standard install in Aubrey does exactly that: crusher run as the base layer and crushed limestone as the wearing surface. Those two materials serve different functions and work well together. What doesn't work is mixing angular and round materials in the same layer, round materials displace through angular ones over time rather than interlocking. For any multi-layer driveway, use crusher run for the base and angular crushed stone (limestone, #57) for the top.