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The Field Guide

Issue 1

Limestone base and clean stone: compare our grades

Compare Standard Limestone Flex Base with Clean 3/4 in Crushed Limestone and specified State Road Base.

Choose your Central Texas Materials product

Use Standard Limestone Flex Base for compacted driveway and pad layers, and Clean 3/4 in Crushed Limestone where the drainage design calls for open stone. State Road Base is available by project quote; confirm the exact grade and required test reports.

Material pricing and specifications

Compare the current catalog products below. Prices are for material only; delivery and applicable sales tax are separate. Planning density is an estimate, not a certified load weight.

Before delivery

Send the product, quantity and unit, delivery address, target date and access notes. Where plans specify grading or testing, request current source-specific documentation before ordering.

Materials, prices & specifications

Current material-only catalog prices. Delivery and applicable sales tax are separate.

Limestone Flex Base - Standard

Limestone Flex Base - Standard

From $26.00/ton

Driveways; road subbase; pads; compacted surfaces.

3 ton minimum

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Material price
From $26.00/ton
Particle size
Fines to nominal 1 1/2 in; confirm upper sieve
Gradation
Standard crushed limestone base with fines
Planning density
1.55 tons/CY (estimate)
Project requirements
Manufacturer webpage may label upper sieve 1 3/4 in; use written SKU specification. Nominal catalog grade only. Request current source-specific test reports; a product name does not certify project compliance.
Crushed Limestone - Clean, 3/4 in

Crushed Limestone - Clean, 3/4 in

From $42.00/ton

French drains; Retaining wall backfill; Septic and foundation drainage

2 ton minimum

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Material price
From $42.00/ton
Particle size
About ½–1 in (nominal ¾ in)
Gradation
Open-graded washed limestone, fines removed
Planning density
1.35 tons/CY (estimate)
Project requirements
Low; stays open so water can move through

Field tip

Squeeze a handful of damp base. If it holds a rough shape, the fines are doing their job. Clean stone falls apart, and that is the point.

Sources

  • TxDOT flexible base selection guidance: https://www.txdot.gov/

General planning guidance. Project plans, engineers, utility owners and manufacturer specifications determine the requirements for your job.