How Much Gravel for a 4x25 Walkway?

How much gravel for a 4x25 walkway is a quick volume problem. 100 square feet at 3 inches comes to 0.93 cubic yards. Gravel usually weighs about 1.3 to 1.5 tons per cubic yard, so plan on roughly 1.3 tons.

Volume and tonnage calculator →

The math for a 4x25 walkway

Area: 4 × 25 = 100 sq ft.
Depth in feet: 3 ÷ 12 = 0.250 ft.
Cubic feet: 100 × 0.250 = 25.0 cu ft.
Cubic yards: ÷ 27 = 0.93 yd³.
Tons: × 1.4 = 1.3 tons.

The volume and tonnage calculator does this for any size.

Gravel needed by depth

Depth	Cubic yards	Tons (approx.)	Tons +10%
2 in	0.62	0.9	1.0
3 in	0.93	1.3	1.4
4 in	1.23	1.7	1.9
6 in	1.85	2.6	2.9

About gravel

Plain gravel is a loose term. Yards use it for rounded bank or river stone as well as for crushed rock, so ask whether the load is washed, crushed or a mix before you lock in a tonnage. Ask your supplier for their own tons-per-yard figure, since stone source and moisture shift it.

Preparing the walkway

Dig the path a few inches below grade, compact the bottom, add fabric if needed and install edging on both sides so the material stays on the walk. This walkway sees foot traffic, so match the depth to that load rather than to the minimum.

Ordering tips

Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
Delivery size. 1.4 tons fits in a single typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
Bulk vs bags. At about 1.3 tons this job is small enough that bagged material could work; a 0.5 cubic foot bag holds about 1/54 of a yard, so compare the bag count with a bulk minimum.
Where it drops. Have the truck dump as close to the walkway as firm ground allows.

Where gravel fits

Works well for:

Rural driveways and lanes where low upfront cost matters
Drainage areas and around downspouts
Temporary access while a site is under construction

Think twice for:

Steep slopes, where loose stone washes downhill
Spots plowed often, since plows push gravel into the lawn
Areas next to doors, because stone tracks inside

Quick reference numbers

Per inch over 100 sq ft: about 0.43 tons of gravel (0.31 cubic yards).
Per inch over 1,000 sq ft: about 4.3 tons.
Another size for comparison: a 20x25 area at 3 inches takes about 6.5 tons.
Weight used here: about 1.4 tons per cubic yard.

Where estimates go wrong

Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.

Questions people ask

How many tons of gravel for a 4x25 walkway?

About 1.3 tons at 3 inches deep, or 1.4 tons with 10 percent extra.

How many cubic yards is a 4x25 walkway at 3 inches?

About 0.93 cubic yards.

How much does a cubic yard of gravel weigh?

Usually around 1.3 to 1.5 tons, depending on stone size, fines and moisture.

How deep should gravel be for a walkway?

The table above shows 2 to 6 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 4x25?

100 square feet.

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