Landscape Materials and Bulk Stone near Asheboro, NC, 27205

A stable base on Georgeville soil

At the ZIP's center point, the USDA soil survey maps Georgeville silty clay loam on 2 to 8 percent slopes, with moderate erosion, and Georgeville makes up 90 percent of that map unit. For a driveway or patio, use a compacted angular-stone base that locks together over this fine-textured subgrade.^[1]

The same USDA survey classifies the soil as well drained, in hydrologic group B with moderate infiltration, and identifies the top mineral layer as silty clay loam. Direct roof or surface runoff away from the base, and use Drain Rock where collected water needs a free-draining path instead of fines.^[1]

Movement and rock below the surface

USDA reports low shrink-swell potential in the upper 100 cm, with linear extensibility of 1.5 percent. A compacted crushed-stone base provides a firm, interlocking layer below a driveway or patio.^[1]

The mapped ground at the ZIP's center point is 790 feet high and lies in the Uwharrie Formation, described as felsic metavolcanic rock including metadacite, metarhyolite, metavolcanic material, argillite, and slate. Choose materials according to their intended use, since the mapped bedrock name is not a material specification.^[2],[3]

Rain and freezing call for drainage

The NOAA station at Asheboro 2 W, NC, about 5 miles away, records 46.6 inches of average yearly precipitation. Give patio and driveway bases a path to shed water, because fines hold moisture while open drainage stone leaves more void space.^[4]

That NOAA station reports 65 days each year when the low reaches 32 F or colder, with a median last spring freeze of April 5 and median first fall freeze of October 31. For a hard surface, use an angular crushed-stone base that drains instead of leaving a water-holding layer beneath the finished surface.^[4]

Materials for separate home-site needs

Census data count 15,746 housing units in ZIP 27205, and 70 percent are detached single-family homes, compared with 51 percent across Asheboro. On an individual home site, select driveway aggregate, patio base, drainage stone, and Top Soil as separate materials because each does a different job.^[5]

The ZIP's median home construction year is 1989, later than Asheboro's 1981 median, and 78 percent of occupied homes are owner occupied. Soil drainage and intended use determine whether Crusher Run, Drain Rock, or Shredded Mulch fits a particular area, separate from these housing figures.^[5]

For road-building work, the North Carolina Department of Transportation names Aggregate Base Course, Section 520, Standard Specifications for Roads and Structures (January 2024).^[6]

In North Carolina deliveries over the last 24 months, American Rock Supply orders most often listed Driveway Gravel and Crusher Run, with a median order size of 6 tons.^[7]