SpanSizer
ASTM C33 Sized Coarse AggregatesUpdated for 2026Commercial Grade

Gravel Calculator (Cubic Yards, Compacted Tons & Truckloads)

Calculate gravel, crushed limestone, and pea gravel in cubic yards, tons, and tandem dump truck loads with compaction factors for driveways and paths.

Regional Market Calibration:Adjusts trade labor, concrete mix, and building codes to local city averages.
Popular Dimension Presets:
Engineered Slab Cutaway Cross-Section (ACI 302)Slab Thickness: 4" Commercial Grade
Broom Finished Concrete Surface4,000 PSI Poured Concrete (4" Slab)#4 Rebar (18" o.c.)10-Mil Heavy Duty Vapor Barrier Membrane (ASTM E1745)4" to 6" Compacted #57 Crushed Stone Base (95% Modified Proctor)

Cross-section demonstrates structural reinforcement elevation on concrete chairs per ACI 302.

Project Dimensions & Material Inputs

(feet)
feet
(feet)
feet
(inches)
inches

Total Gravel Required

12.4 Compacted Tons (8.52 Cubic Yards)

Tandem Dump Truck Deliveries

1 Truckloads (15-ton tandem dumps for 600 sq ft)

Contractor Bill of Materials (BOM) Breakdown

Item / Material SpecQuantityUnit / PackageInstallation Notes
Crushed Stone (CRUSHED 57)12.4TonsBulk density 1.45 tons/yd³ with 15% compaction allowance
15-Ton Tandem Dump Truck Delivery1LoadsQuarry freight delivery with optional tailgate spreading
Non-Woven Geotextile Driveway Underlayment660Sq FtASTM D4632 subgrade separation fabric

Estimated Project Cost Range (DIY vs. Turnkey Contractor)

National Average
DIY Raw Materials Only
$566 – $708

Cost of raw lumber, concrete, shingles, wire, or stone without equipment rentals or labor.

Licensed Contractor Turnkey
$1,230 – $2,290

Full installation: permits, site prep, skilled trade labor, equipment, and structural warranty.

Estimated Sweat Equity
~$1,123

Average trade labor savings if executed as a skilled DIY homeowner project.

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Compare Up to 3 Free Quotes from Licensed Local Contractors

Skip the heavy equipment rentals, structural liabilities, and municipal permit delays. Connect directly with pre-screened, licensed, and insured trade specialists in National Average.

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ASTM Coarse Aggregate Bulk Density & Compaction Model

Rendering formula...

Gravel Tonnage Derivation for 50' × 12' (4" Depth)

  1. Footprint Area = 50 ft × 12 ft = 600 sq ft.
  2. Neat Volume = (600 × (4 / 12)) / 27 = 7.41 cubic yards.
  3. Adding 15% roller compaction allowance: 7.41 × 1.15 = 8.52 cu yd.
  4. Multiplying by density (1.45 tons/yd³): 8.52 × 1.45 = 12.4 tons.
  5. Dividing by 15-ton truck payload: ceil(12.4 / 15) = 1 loads.
Engineering Tip: Install geotextile fabric beneath gravel to prevent stone from slowly sinking into clay subsoil.

Quick Reference Sizing & Coverage Table

Standard commercial specifications and pre-calculated project benchmarks.

Pre-Calculated
Scope FootprintDepthCubic YardsCompacted TonsTandem Dump Loads (15T)
200 sq ft (Walkway)3.0 Inches2.1 cu yd3.1 Tons1 Truckload (Min)
600 sq ft (Driveway)4.0 Inches8.5 cu yd12.4 Tons1 Truckload
1,200 sq ft (2-Car)4.0 Inches17.0 cu yd24.7 Tons2 Truckloads
2,400 sq ft (Long)4.0 Inches34.1 cu yd49.4 Tons4 Truckloads
ASTM C33 Size #57 & Dense-Graded Aggregate (DGA)

ASTM C33 / AASHTO M 43 Coarse Aggregate Sizes

Gradation #57 crushed limestone has nominal particle sizes ranging from 1/2 inch to 1 inch with no fines, providing high permeability for drainage. Crusher run (#411/#304) includes stone dust and compacts to 95% density for rigid unpaved roads.

Frequently Asked Questions

How much area does 1 ton of gravel cover?

At 2 inches deep, 1 ton of gravel covers approximately 100 to 110 square feet. At 3 inches deep, it covers roughly 70 to 75 square feet, and at 4 inches deep, it covers 50 to 55 square feet.

How thick should a gravel driveway be?

A new gravel driveway on bare soil should have a total depth of 8 to 12 inches installed in layers: 4 to 6 inches of coarse #3 base stone, followed by 4 inches of dense-graded crusher run, topped with 2 to 3 inches of washed #57 stone. For an existing driveway, a 2 to 3-inch top-dress is standard.

What is the best gravel for a driveway?

#57 crushed limestone is the most popular top-layer driveway gravel because the angular fractured edges interlock together and allow rain to drain through without washing away.

How much does a 15-ton truckload of gravel cost?

A 15-ton tandem dump truck load of crushed limestone gravel costs between $450 and $750 delivered, depending on stone grade and quarry haul distance.

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Engineering Specification & Field Manual

Calculation Methodology & Municipal Code Compliance for Gravel Calculator (Cubic Yards, Compacted Tons & Truckloads)

Adheres to certified architectural formulas and standard ASTM C33 Size #57 & Dense-Graded Aggregate (DGA) commercial trade provisions.

1. Governing Formula & Physical Equations

Accurate material takeoff requires reconciling nominal plan dimensions with real-world physical packaging and volumetric compaction. This engine evaluates Project Length, Project Width, Compacted Depth, Gravel / Stone Grade against certified engineering multipliers.

\text{Compacted Tons} = \frac{\text{Length (ft)} \times \text{Width (ft)} \times (\text{Depth (in)}/12)}{27} \times 1.15\text{ (Compaction)} \times 1.45\text{ tons/yd}^3

Equation Reference: ASTM Coarse Aggregate Bulk Density & Compaction Model. Calculated results provide both theoretical net volume and practical jobsite gross totals factoring standard shrinkage and trim cuts.

2. Step-by-Step Field Calculation Protocol

Step 1

Measure Field Dimensions

Measure length, width, depth, or gauge with calibrated trade tools. Confirm grade level and structural subbase.

Step 2

Apply Safety & Scrap Factor

Factor a 5% to 15% allowance depending on job complexity to prevent costly project shutdowns from mid-job shortages.

Step 3

Reconcile Packaging & Labor

Round up to whole commercial packaging units (bags, rolls, panels) and compare raw material cost against regional trade rates.

3. Code Compliance (ASTM C33 Size #57 & Dense-Graded Aggregate (DGA))

Building departments across the United States reference municipal standard codes (including the International Residential Code IRC, National Electrical Code NFPA 70, American Concrete Institute ACI, and ASTM international specs). Designing below these minimum safety thresholds risks structural deflection, inspection failure, and permit revocation.

✓ Verified 2026 Building Code Cycle✓ Regional Frost & Wind Zone Adaptive✓ Dual DIY Material & Turnkey Labor Output

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