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Bags of Crushed Stone for a 16x14 Patio

How many bags of crushed stone for a 16x14 patio: at 3 inches deep you need about 56.0 cubic feet, which is 112 bags of the common 0.5 cubic foot size. If your store sells crushed stone in 50-pound bags instead, figure about 117 bags, since crushed stone 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 in18.73839
2 in37.37578
3 in56.0112117
4 in74.7150155

How to figure it

  1. Area: 16 × 14 = 224 sq ft.
  2. Volume: 224 × (3 ÷ 12) = 56.0 cu ft.
  3. Bags: 56.0 ÷ 0.5 = 112 bags (round up).

Bags or bulk?

A cubic yard is 27 cubic feet, so 56.0 cubic feet is 2.07 yards, about 2.9 tons. At this size, a bulk delivery usually beats a cart full of bags once you count trips. Compare the bag price × 112 against a bulk quote for 3.2 tons delivered.

About crushed stone

Crushed stone has fractured faces, so the pieces interlock when compacted. That is why it holds a driveway or pad shape better than round stone of the same size.

Install tips 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.

When to choose crushed stone

Works well for:

  • Driveway top courses and parking pads
  • Shed and hot tub bases
  • Backfill behind walls when a clean size is used

Poor fit for:

  • Barefoot areas, since angular stone is rough
  • Play areas
  • Places that need a smooth rolling surface for wheels

Quick reference numbers

  • Per inch over 100 sq ft: about 0.43 tons of crushed stone (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.

Mistakes that throw off the order

  • 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.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.

Questions people ask

How many bags of crushed stone for a 16x14 patio?

About 112 bags of 0.5 cubic feet at 3 inches deep.

How many 50 lb bags of crushed stone for 16x14?

About 117 bags at 3 inches.

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

54 bags.

How many cubic feet is a 16x14 patio at 3 inches?

About 56.0 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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