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Bags of Limestone Screenings for a 16x24 Patio

How many bags of limestone screenings for a 16x24 patio: at 2 inches deep you need about 64.0 cubic feet, which is 128 bags of the common 0.5 cubic foot size. If your store sells limestone screenings in 50-pound bags instead, figure about 133 bags, since limestone screenings weighs roughly 104 pounds per cubic foot.

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Bag count by depth

DepthCubic feet0.5 cu ft bags50 lb bags (approx.)
1 in32.06467
2 in64.0128133
3 in96.0192200
4 in128.0256266

How to figure it

  1. Area: 16 × 24 = 384 sq ft.
  2. Volume: 384 × (2 ÷ 12) = 64.0 cu ft.
  3. Bags: 64.0 ÷ 0.5 = 128 bags (round up).

Bags or bulk?

A cubic yard is 27 cubic feet, so 64.0 cubic feet is 2.37 yards, about 3.3 tons. Past about a yard, bulk is usually less work and often less money. Compare the bag price × 128 against a bulk quote for 3.7 tons delivered.

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.

Laying it down for a patio

  • Dig and level. Remove sod and set the base slightly below the surrounding grade.
  • Edge it. Steel, plastic or stone edging keeps material in place.
  • Spread in layers. Rake to depth, then tamp or wet and compact.
  • Buy a few extra. Grab 5 to 10 percent more bags for settling and touch-ups.

The volume and tonnage calculator handles other sizes and depths.

Good and poor uses for limestone screenings

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 20x25 area at 4 inches takes about 8.6 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Common estimating mistakes

  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.

Questions people ask

How many bags of limestone screenings for a 16x24 patio?

About 128 bags of 0.5 cubic feet at 2 inches deep.

How many 50 lb bags of limestone screenings for 16x24?

About 133 bags at 2 inches.

How many 0.5 cubic foot bags are in a cubic yard?

54 bags.

How many cubic feet is a 16x24 patio at 2 inches?

About 64.0 cubic feet.

When does bulk make more sense?

Usually once the job passes about a cubic yard, or when you would need more than a few car trips.

Related guides

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