How much gravel to top up a 12×50 driveway?

Data checked October 2026

Short answer

Topping up a 12×50 ft driveway with 2 in of crusher run needs 3.7 cubic yards in place — order about 7.9 tons of crusher run (5.42 cu yd loose) including 10% extra and compaction.

Volume: 600 sq ft × 2 in ÷ 12 = 100 cu ft = 3.7 cu yd.
Compaction: crusher run goes down loose about 2.7 in deep and tamps to 2 in, so order 1.33× the volume; compact in a single lift of no more than 3 in.
Weight: at 1.45 t per loose cu yd that is 7.9 tons; quarry factors for crusher run put it anywhere from 7 to 8.8 tons.
Bags: 293 bags of 0.5 cu ft (about $1,752) versus about $303 for bulk delivered.
Hauling: 1 tandem load from the yard, or 16 trips in a half-ton pickup (1,000 lb payload) — a yard of stone weighs 2,900 lb.
Fill potholes first, then spread the top-up and roll or tamp it so traffic doesn't scatter it.

Adjust it to your exact job

What's it for?

Project

Top-dressing a worn driveway with about 2 in restores the surface; rebuild only where the base has failed.

Size

Shape

Length

= 12' · 3.66 m

Width

= 50' · 15.24 m

Material & depth

Material

Compacted bases for driveways, sheds, slabs and pavers. Stone plus fines packs hard — the default base material. Also sold as: crush & run, #411, 304, DGA, ABC, GAB, CA-6, 21A, 2A, flex base, Class 2 AB, 3/4 minus.

Finished (compacted) depth

Exact depth

Compacted layer

Depth is after tamping; the order includes 1.33× loose volume.

How you'll buy it

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

Order

7.9tons of crusher run

5.42 cu yd loose · 7.9 tons · 293 × 0.5 cu ft bags · incl. 10% extra and 1.33× for compaction

Loose volume to order: 5.42 cu yd3.7 cu yd in place
Weight range: 7–8.8tonssame volume across published quarry factors
Area: 600 sq ft
1 ton of crusher run covers: 84 sq ftat 2 in compacted

Order loose, finish compacted

Spread about 2.7 in of crusher run and compact it in 1 lift of no more than 3 in to finish at 2 in. That is why the order is 1.33× the finished volume — bag labels and most calculators skip this and leave you short.

Weight factors vary by quarry

Crusher run / #411 / road base: 1.45 t per loose cu yd (published 1.3–1.62).Your yard's scale ticket is the final word — enter its factor under “Weight factor”.

Bulk or bags?

293 × 0.5 cu ft bags

$1,752

materials, before tax

7.9 tons delivered

$303

Cheaper ✓ · incl. 1 delivery fee

At these prices bulk is cheaper from about 0.4 tons (15 bags). Bagged crusher run costs 7.7× the bulk price per yard here; bags make sense for small patches or where a truck can't reach. Your plan (delivered): $303.

Getting it home

Total weight: 7.9 tons · 15,714 lb
Dump truck: 1 tandem load
Your pickup: 16 trips at 1,000 lb payload · about 6% 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).

Crown it

Shape the surface with a crown or cross-slope of 1/2–3/4 in per foot so water runs off instead of soaking the base (Penn State Center for Dirt & Gravel Roads).

Shopping list

7.9 tons Crusher run / #411 / road base — 2 in compacted$228
1 load Delivery$75.00
1 day Plate compactor rental

Estimated total$303

Cost estimate

Tap a price to use your store's

crusher run, bulk
7.9 tons × $
$229
Delivery
1 load × $
$75.00

Materials total$304

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

12×50 ft of crusher run at other depths

Depth	Order (cu yd)	Tons	0.5 cu ft bags	Bulk delivered
2 in compacted	5.42	7.9	293	$303
3 in compacted	8.13	11.8	439	$417
4 in compacted	10.84	15.7	586	$531
6 in compacted	16.26	23.6	878	$834

How this was worked out

600 sq ft × 0.167 ft = 100 cu ft, ÷ 27 = 3.7 cu yd. × 1.33 for compaction × 1.10 extra = 5.42 cu yd, × 1.45 t/yd³ = 7.86 tons.

With bags at $5.98 and bulk at $29.00 per ton plus $75 delivery, bulk beats bags from about 0.39 tons. At 7.9 tons bulk is clearly the cheaper way to buy — bags only make sense if a truck can't reach the spot.

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

Topping up a 12×50 ft driveway with 2 in of crusher run needs 3.7 cubic yards in place — order about 7.9 tons of crusher run (5.42 cu yd loose) including 10% extra and compaction.

Volume: 600 sq ft × 2 in ÷ 12 = 100 cu ft = 3.7 cu yd.

Compaction: crusher run goes down loose about 2.7 in deep and tamps to 2 in, so order 1.33× the volume; compact in a single lift of no more than 3 in.

Weight: at 1.45 t per loose cu yd that is 7.9 tons; quarry factors for crusher run put it anywhere from 7 to 8.8 tons.

Bags: 293 bags of 0.5 cu ft (about $1,752) versus about $303 for bulk delivered.

Hauling: 1 tandem load from the yard, or 16 trips in a half-ton pickup (1,000 lb payload) — a yard of stone weighs 2,900 lb.

Fill potholes first, then spread the top-up and roll or tamp it so traffic doesn't scatter it.

Adjust it to your exact job

What's it for?

Project

Top-dressing a worn driveway with about 2 in restores the surface; rebuild only where the base has failed.

Size

Shape

Length

= 12' · 3.66 m

Width

= 50' · 15.24 m

Material & depth

Material

Finished (compacted) depth

Exact depth

Compacted layer

Depth is after tamping; the order includes 1.33× loose volume.

How you'll buy it

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

Order

7.9tons of crusher run

5.42 cu yd loose · 7.9 tons · 293 × 0.5 cu ft bags · incl. 10% extra and 1.33× for compaction

Loose volume to order: 5.42 cu yd3.7 cu yd in place
Weight range: 7–8.8tonssame volume across published quarry factors
Area: 600 sq ft
1 ton of crusher run covers: 84 sq ftat 2 in compacted

Order loose, finish compacted

Weight factors vary by quarry

Crusher run / #411 / road base: 1.45 t per loose cu yd (published 1.3–1.62).Your yard's scale ticket is the final word — enter its factor under “Weight factor”.

Bulk or bags?

293 × 0.5 cu ft bags

$1,752

materials, before tax

7.9 tons delivered

$303

Cheaper ✓ · incl. 1 delivery fee

Getting it home

Total weight: 7.9 tons · 15,714 lb
Dump truck: 1 tandem load
Your pickup: 16 trips at 1,000 lb payload · about 6% 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).

Crown it

Shape the surface with a crown or cross-slope of 1/2–3/4 in per foot so water runs off instead of soaking the base (Penn State Center for Dirt & Gravel Roads).

Shopping list

7.9 tons Crusher run / #411 / road base — 2 in compacted$228
1 load Delivery$75.00
1 day Plate compactor rental

Estimated total$303

Cost estimate

Tap a price to use your store's

crusher run, bulk
7.9 tons × $
$229
Delivery
1 load × $
$75.00

Materials total$304

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

5.42

7.9

293

$303

3 in compacted

8.13

11.8

439

$417

4 in compacted

10.84

15.7

586

$531

6 in compacted

16.26

23.6

878

$834

How this was worked out

600 sq ft × 0.167 ft = 100 cu ft, ÷ 27 = 3.7 cu yd. × 1.33 for compaction × 1.10 extra = 5.42 cu yd, × 1.45 t/yd³ = 7.86 tons.

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