The rich, dark top layer of soil that is stripped and saved during construction, then spread back to support grass and plantings.
The uppermost layer of native soil, typically 4 to 12 inches deep, that contains the highest concentration of organic matter and biological activity, making it the most fertile layer for plant growth. Topsoil is typically stripped and stockpiled during site clearing and earthwork, then respread over disturbed areas for final landscaping. Topsoil placement depth and quality affect revegetation success.
Topsoil handling appears in earthwork takeoffs as stripping, stockpiling, and respreading, and underestimating strip depth or haul distance can erode an earthwork bid's margin quickly. Because plans often specify minimum respread depth and imported screened topsoil when site material is insufficient, estimators must confirm quantities and quality to avoid a costly import scope gap.
During takeoff, an estimator calculates 8,000 cubic yards of topsoil to strip and stockpile, then prices imported screened topsoil to make up the 4-inch landscape respread the spec requires across the disturbed area.
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