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How Much Limestone Screenings for a 6x20 Walkway?

How much limestone screenings for a 6x20 walkway is a quick volume problem. 120 square feet at 3 inches comes to 1.11 cubic yards. Limestone screenings usually weighs about 1.3 to 1.5 tons per cubic yard, so plan on roughly 1.6 tons.

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The math for a 6x20 walkway

  1. Area: 6 × 20 = 120 sq ft.
  2. Depth in feet: 3 ÷ 12 = 0.250 ft.
  3. Cubic feet: 120 × 0.250 = 30.0 cu ft.
  4. Cubic yards: ÷ 27 = 1.11 yd³.
  5. Tons: × 1.4 = 1.6 tons.

The volume and tonnage calculator does this for any size.

Limestone screenings needed by depth

DepthCubic yardsTons (approx.)Tons +10%
1 in0.370.50.6
2 in0.741.01.1
3 in1.111.61.7

About limestone screenings

Screenings hold moisture and can crust over. Use them in thin layers over a compacted stone base instead of as a thick layer on their own. Weight per yard is a planning number; the scale ticket at the yard is the real one.

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. For foot traffic, the depths in the table above are a reasonable starting range.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 1.7 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.

Where limestone screenings fits

Good uses:

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

Less suited to:

  • 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 3 inches takes about 5.1 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Mistakes that throw off the order

  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • 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.
  • 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 6x20 walkway?

About 1.6 tons at 3 inches deep, or 1.7 tons with 10 percent extra.

How many cubic yards is a 6x20 walkway at 3 inches?

About 1.11 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 6x20?

120 square feet.

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