ContractorHandbook

How Much Mulch for 250 Square Feet?

Material needed

2.31 cubic yards

250 square feet at 3 inches deep, bark mulch at roughly 800 lb per cubic yard.

It does not stop at a number.

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bed length, ftdepth, inbed width, ftarea x (depth in inches / 12) / 27 = cubic yards
Three inches is the working depth for mulch, and depth is the input people guess at. Bulk comes by the yard and bags hold two cubic feet, so the same volume answers both questions.

How that number is worked out

These are the figures this page was built with and every line the calculator produces from them. Change anything above and all of it moves.

  • Bed area250 sq ft
  • Depth3 in
  • MaterialMulch

Material needed2.31 cubic yards

Volume62.5 cu ft
Cubic yards2.31most yards sell in half yard steps
Order in half yards2.5 cu yd
2 cu ft bags, if bagging it32
Approximate weight1,852 lb (0.93 tons)

The material list this produces

Material, cubic yards2.5
Landscape fabric, sq ft250
Edging, linear ft64

Depth compared

Depth is the whole calculation. Two inches will not suppress weeds, six inches will suffocate roots.

DepthMaterial neededOrder in half yards
2 in1.54 cubic yards2 cu yd
3 in2.31 cubic yards2.5 cu yd
4 in3.09 cubic yards3.5 cu yd
6 in4.63 cubic yards5 cu yd

What else matters here

Two and a half yards is where bagging stops being sensible. Thirty two bags is two or three trips, most of a morning, and a pile of empty plastic, against one delivery that gets tipped on the driveway in five minutes.

Order two and a half rather than two. Bulk material is sold loose and settles in transit, and a bed measured at 250 square feet is almost never exactly 250 once it is edged properly. Running half a yard short at the far end of the last bed is the usual way this goes wrong.

At about 1,850 pounds this is right at the edge of a half ton pickup's payload once you count the driver and the tailgate. It fits by volume. Whether it should go in that truck is a different question.

What this calculator assumes

  • Three inches is the usual mulch depth. Two is thin and will not hold weeds down, four starts to smother shallow roots and holds water against trunks.
  • Weights are approximate and vary with moisture: mulch about 800 lb per cubic yard, topsoil 2200, gravel 2800, sand 2700.
  • Bagged material is sold in 2 cubic foot bags, and there are 13.5 of those in a cubic yard.

Questions people ask

How many cubic yards of mulch for 250 square feet?

About 2.31 cubic yards at 3 inches deep, which is usually ordered as 2.5.

How many bags is that?

Around 32 bags at 2 cubic feet each. At that count bulk delivery is almost always cheaper as well as faster.

Should I order extra mulch?

Yes, round up rather than down. Loose material settles, bed measurements are rarely exact, and a second delivery for half a yard costs the full delivery fee again.

Different numbers?

The mulch and gravel calculator takes any dimensions you like and hands back the same list.

Other common sizes