How much decomposed granite for a 10×20 patio?

Data checked October 2026

Short answer

A 10×20 ft area at 3 in compacted needs 1.85 cubic yards in place — order about 3.4 tons of decomposed granite (2.34 cu yd loose) including 10% extra and compaction.

Volume: 200 sq ft × 3 in ÷ 12 = 50 cu ft = 1.85 cu yd.
Compaction: decomposed granite goes down loose about 3.4 in deep and tamps to 3 in, so order 1.15× the volume; compact in a single lift of no more than 3 in.
Weight: at 1.45 t per loose cu yd that is 3.4 tons; quarry factors for decomposed granite put it anywhere from 3.4 to 3.5 tons.
Bags: 127 bags of 0.5 cu ft versus about $326 for bulk delivered.
Hauling: 1 single-axle load from the yard, or 7 trips in a half-ton pickup (1,000 lb payload) — a yard of stone weighs 2,900 lb.
DG patios are compacted in thin lifts and lightly wetted; 3 in sits mid-range of the 2–4 in Roseville lists.

Adjust it to your exact job

What's it for?

Project

A typical build-up: about 2 in of pea gravel or DG on top of 3 in of compacted crusher run.

Size

Shape

Length

= 10' · 3.05 m

Width

= 20' · 6.1 m

Material & depth

Material

Compacted paths and patios with a natural look; West Coast staple. Compact it 2–4 in deep over a firm base. Also sold as: DG, granite fines, crushed granite.

Finished (compacted) depth

Exact depth

Compacted layer

Depth is after tamping; the order includes 1.15× loose volume.

How you'll buy it

“Cheapest” compares bulk delivered with 0.5 cu ft bags at the prices below.

Order

2.34cu yd of decomposed granite

2.34 cu yd loose · 3.4 tons · 127 × 0.5 cu ft bags · incl. 10% extra and 1.15× for compaction

Loose volume to order: 2.34 cu yd1.85 cu yd in place
Weight range: 3.4–3.5tonssame volume across published quarry factors
Area: 200 sq ft
1 ton of decomposed granite covers: 65 sq ftat 3 in compacted

Order loose, finish compacted

Spread about 3.4 in of decomposed granite and compact it in 1 lift of no more than 3 in to finish at 3 in. That is why the order is 1.15× the finished volume — bag labels and most calculators skip this and leave you short.

Weight factors vary by quarry

Decomposed granite (DG): 1.45 t per loose cu yd (published 1.45–1.5).Your yard's scale ticket is the final word — enter its factor under “Weight factor”.

Bulk or bags?

127 × 0.5 cu ft bags

—

no bag price — add one

2.34 cu yd delivered

$326

incl. 1 delivery fee

Your plan (delivered): $326.

Getting it home

Total weight: 3.4 tons · 6,794 lb
Dump truck: 1 single-axle load
Your pickup: 7 trips at 1,000 lb payload · about 15% of the order per trip

Pickup payload

Payload is on the Tire & Loading sticker in the driver's door jamb. Single-axle dump trucks carry about 5 tons; bigger orders come on a tandem (up to 18 tons).

Laying pavers instead?

Pavers need a deeper compacted base plus 1 in of bedding sand — the paver base calculator works out both.

Shopping list

2.35 cu yd Decomposed granite (DG) — 3 in compacted$251
1 load Delivery$75.00
200 sq ft Landscape fabricplus overlap at seams
60 ft Landscape edgingkeeps gravel out of the lawn
1 day Plate compactor rental

Estimated total$326

Cost estimate

Tap a price to use your store's

decomposed granite, bulk
2.35 cu yd × $
$251
Delivery
1 load × $
$75.00

Materials total$326

Bulk prices are typical 2026 yard and national-guide prices (American Rock Supply, Mulch Pros, Roseville Rock Supply); bag prices are retail snapshots. Tap any price to use your yard's.

Did this answer your question?

Compare

10×20 ft of decomposed granite at other depths

Depth	Order (cu yd)	Tons	0.5 cu ft bags	Bulk delivered
2 in compacted	1.56	2.3	85	$242
3 in compacted	2.34	3.4	127	$326
4 in compacted	3.12	4.5	169	$409
6 in compacted	4.69	6.8	253	$576

How this was worked out

200 sq ft × 0.25 ft = 50 cu ft, ÷ 27 = 1.85 cu yd. × 1.15 for compaction × 1.10 extra = 2.34 cu yd, × 1.45 t/yd³ = 3.4 tons.

There is no dated bag price for decomposed granite, so only bulk is priced here — add a bag price in the calculator if your store stocks it. At this size one single-axle load covers it; ask the yard about its delivery minimum.

The full method, material data and tips are on the main gravel calculator page.

Similar jobs

Other sizes people check

Sources

Data behind this answer

Mulch Pros — material weight & coverage (scale weights) — 2,600–2,900 lb per yd³ of stone; 1 yd³ covers 162 sq ft at 2 in and 108 at 3 in; pine straw bale ≈ 40 sq ft; single-axle ≈ 5 t, tandem up to 18 t · checked October 2026
Martin Marietta product calculator — material density table — coarse stone 1.32 t/yd³, base 1.90–1.95 t/yd³ (compacted basis), crushed-concrete base 1.47 · checked October 2026
Vulcan Materials construction aggregates calculator — screenings 110–124 lb/ft³, sand 100–110 lb/ft³, coarse 90–102 lb/ft³ by geology · checked October 2026
Penn State Center for Dirt & Gravel Roads — DSA Tech Bulletin (Apr 2025) — 8 in loose compacts to 6 in (factor 1.33); 0.04 t per sq ft; crown 1/2–3/4 in per ft · checked October 2026
American Rock Supply — how much does gravel cost (2026) — #57 $35–$55/ton, pea gravel $28–$45/ton, crusher run $24–$34/ton (material only); delivered per-ton prices · checked October 2026
Mulch Pros price list (October 22, 2026) — bag and bulk prices for mulch, soil, compost, #57, crush & run, pea gravel, sand; delivery $7/mi ($60 min) · checked October 2026
Roseville Rock Supply — calculator & reference table — DG ~3,000 lb/yd³, mulch 400–800 lb, topsoil 2,000–2,200 lb; order 5–10% extra; base materials up to 15% for compaction · checked October 2026
Roseville Rock Supply — aggregates, sands, topsoil & delivery rates — DG $106.95/yd³, concrete sand $68.95/yd³, screened topsoil $51.95/yd³; free delivery from 4 yd within 14 mi · checked October 2026
Stone Center (Ohio) material calculator — pea gravel 1.4–1.6 t/yd³; 2 in minimum for decorative pea gravel and river rock; 10% waste · checked October 2026
Nebraska DOT — Estimating Material Quantities (July 2024) — stockpiled crushed concrete 1.35 t/yd³; soil compacted in place 110 lb/ft³ · checked October 2026
The Pricer — crushed concrete cost (updated July 2026) — $9–$25 per ton at recycling yards; 1.2–1.4 t per yd³ · checked October 2026
Kokosing Materials (Ohio) tonnage calculator — factors 1.5 (sand), 1.65 (#57/#8), 1.75 (304/411/screenings) — the high end of published values · checked October 2026
Quikrete — how to build a patio — place about 5 in of compactible gravel, tamp to 4 in; extend the base at least 6 in beyond the edges · checked October 2026
Unilock Basic Tech Guide (Jan 2024) — base 6–8 in patios & walks, 6–12 in pool decks, 10–14 in driveways; 1 in bedding; compact in 2–3 in layers; edge restraints spiked into the base · checked October 2026
CPSC Public Playground Safety Handbook (Pub. 325) — Table 2 depths and fall heights; loose fill compresses at least 25%; 12 in initial fill for 9 in · checked October 2026

Short answer

A 10×20 ft area at 3 in compacted needs 1.85 cubic yards in place — order about 3.4 tons of decomposed granite (2.34 cu yd loose) including 10% extra and compaction.

Volume: 200 sq ft × 3 in ÷ 12 = 50 cu ft = 1.85 cu yd.

Compaction: decomposed granite goes down loose about 3.4 in deep and tamps to 3 in, so order 1.15× the volume; compact in a single lift of no more than 3 in.

Weight: at 1.45 t per loose cu yd that is 3.4 tons; quarry factors for decomposed granite put it anywhere from 3.4 to 3.5 tons.

Bags: 127 bags of 0.5 cu ft versus about $326 for bulk delivered.

Hauling: 1 single-axle load from the yard, or 7 trips in a half-ton pickup (1,000 lb payload) — a yard of stone weighs 2,900 lb.

DG patios are compacted in thin lifts and lightly wetted; 3 in sits mid-range of the 2–4 in Roseville lists.

Adjust it to your exact job

What's it for?

Project

A typical build-up: about 2 in of pea gravel or DG on top of 3 in of compacted crusher run.

Size

Shape

Length

= 10' · 3.05 m

Width

= 20' · 6.1 m

Material & depth

Material

Compacted paths and patios with a natural look; West Coast staple. Compact it 2–4 in deep over a firm base. Also sold as: DG, granite fines, crushed granite.

Finished (compacted) depth

Exact depth

Compacted layer

Depth is after tamping; the order includes 1.15× loose volume.

How you'll buy it

“Cheapest” compares bulk delivered with 0.5 cu ft bags at the prices below.

Order

2.34cu yd of decomposed granite

2.34 cu yd loose · 3.4 tons · 127 × 0.5 cu ft bags · incl. 10% extra and 1.15× for compaction

Loose volume to order: 2.34 cu yd1.85 cu yd in place
Weight range: 3.4–3.5tonssame volume across published quarry factors
Area: 200 sq ft
1 ton of decomposed granite covers: 65 sq ftat 3 in compacted

Order loose, finish compacted

Weight factors vary by quarry

Decomposed granite (DG): 1.45 t per loose cu yd (published 1.45–1.5).Your yard's scale ticket is the final word — enter its factor under “Weight factor”.

Bulk or bags?

127 × 0.5 cu ft bags

—

no bag price — add one

2.34 cu yd delivered

$326

incl. 1 delivery fee

Your plan (delivered): $326.

Getting it home

Total weight: 3.4 tons · 6,794 lb
Dump truck: 1 single-axle load
Your pickup: 7 trips at 1,000 lb payload · about 15% of the order per trip

Pickup payload

Payload is on the Tire & Loading sticker in the driver's door jamb. Single-axle dump trucks carry about 5 tons; bigger orders come on a tandem (up to 18 tons).

Laying pavers instead?

Pavers need a deeper compacted base plus 1 in of bedding sand — the paver base calculator works out both.

Shopping list

2.35 cu yd Decomposed granite (DG) — 3 in compacted$251
1 load Delivery$75.00
200 sq ft Landscape fabricplus overlap at seams
60 ft Landscape edgingkeeps gravel out of the lawn
1 day Plate compactor rental

Estimated total$326

Cost estimate

Tap a price to use your store's

decomposed granite, bulk
2.35 cu yd × $
$251
Delivery
1 load × $
$75.00

Materials total$326

Bulk prices are typical 2026 yard and national-guide prices (American Rock Supply, Mulch Pros, Roseville Rock Supply); bag prices are retail snapshots. Tap any price to use your yard's.

Depth

Order (cu yd)

Tons

0.5 cu ft bags

Bulk delivered

2 in compacted

1.56

2.3

$242

3 in compacted

2.34

3.4

127

$326

4 in compacted

3.12

4.5

169

$409

6 in compacted

4.69

6.8

253

$576

How this was worked out

200 sq ft × 0.25 ft = 50 cu ft, ÷ 27 = 1.85 cu yd. × 1.15 for compaction × 1.10 extra = 2.34 cu yd, × 1.45 t/yd³ = 3.4 tons.

The full method, material data and tips are on the main gravel calculator page.