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How Much Limestone Screenings for a 6x100 Walkway?

How much limestone screenings for a 6x100 walkway: at 3 inches deep you need about 5.56 cubic yards, which is roughly 7.8 tons at 1.4 tons per yard. The walkway covers 600 square feet, so every inch of depth adds about 1.85 yards.

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The math for a 6x100 walkway

  1. Area: 6 × 100 = 600 sq ft.
  2. Depth in feet: 3 ÷ 12 = 0.250 ft.
  3. Cubic feet: 600 × 0.250 = 150.0 cu ft.
  4. Cubic yards: ÷ 27 = 5.56 yd³.
  5. Tons: × 1.4 = 7.8 tons.

The volume and tonnage calculator does this for any size.

Limestone screenings needed by depth

DepthCubic yardsTons (approx.)Tons +10%
1 in1.852.62.9
2 in3.705.25.7
3 in5.567.88.6

About limestone screenings

Limestone screenings are the fine dust and chips left after crushing limestone. They pack very tight, which makes them a common setting bed for pavers and flagstone and a surface for paths. 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. Since the walkway carries foot traffic, a little extra depth is cheap insurance.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 8.6 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 this size bulk delivery is usually the practical choice.
  • Where it drops. Have the truck dump as close to the walkway as firm ground allows.

Good and poor uses for limestone screenings

Best suited to:

  • Paver and flagstone setting beds
  • Firm walking paths
  • Top-dressing a compacted stone base

Think twice for:

  • Deep layers on their own
  • Low spots that collect water
  • Under heavy vehicle traffic without a base

Quick reference numbers

  • Per inch over 100 sq ft: about 0.43 tons of limestone screenings (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.3 tons.
  • Another size for comparison: a 14x28 area at 4 inches takes about 6.8 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Common estimating mistakes

  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
  • Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.

Questions people ask

How many tons of limestone screenings for a 6x100 walkway?

About 7.8 tons at 3 inches deep, or 8.6 tons with 10 percent extra.

How many cubic yards is a 6x100 walkway at 3 inches?

About 5.56 cubic yards.

How much does a cubic yard of limestone screenings weigh?

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

How deep should limestone screenings be for a walkway?

The table above shows 1 to 3 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 6x100?

600 square feet.

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