How Much Mulch for 100 Square Feet?
Mulching 100 square feet of beds at 3 inches takes 0.93 cubic yards. How much mulch for 100 square feet at 2 inches is 0.62 yards.
Volume and tonnage calculator →Mulch by depth
| Depth | Cubic yards | 2 cu ft bags | 3 cu ft bags |
|---|---|---|---|
| 2 in | 0.62 | 9 | 6 |
| 3 in | 0.93 | 13 | 9 |
| 4 in | 1.23 | 17 | 12 |
One cubic yard of mulch covers about 108 square feet at 3 inches deep, or 162 square feet at 2 inches.
Related: How Much Mulch for 500 Square Feet?
Best mulch depth
Aim for 2 to 3 inches. Refreshing existing beds often needs only an inch on top. Do not pile mulch against trunks; the ’volcano’ mound traps moisture against the bark.
Buying mulch
Bags keep a small job simple. A 2 cubic foot bag is 1/13.5 of a yard, so 13 to 14 bags equal one cubic yard.
Related: How Much Mulch for 1,000 Square Feet?
Timing the job
Spring and early fall are the easiest times to spread soil and mulch: the ground is workable and plants are ready to root. Avoid spreading right before heavy rain, which can wash fresh material off slopes and into drains.
Measuring accurately
Walk the area with a tape and sketch it. Break odd shapes into rectangles and circles. If you are topping up an existing bed or lawn, measure only the new depth, since adding a full depth on top of existing soil overbuys.
Delivery and spreading
Bulk soil and mulch are usually dumped in one pile, so choose a spot on a tarp or driveway close to the work. A wheelbarrow holds about 1/10 to 1/6 of a yard, so a few yards means many trips; a helper and two wheelbarrows speed things up.
Weight and hauling
A cubic yard of soil can weigh a ton or more, and mulch roughly a quarter to half of that depending on moisture. Check your vehicle’s payload before hauling, and keep trailer loads within the rated capacity.
Questions people ask
How many yards of mulch for 100 sq ft?
About 0.93 cubic yards at 3 inches.
How many bags of mulch for 100 sq ft?
About 13 bags of 2 cubic feet at 3 inches.
How much does a yard of mulch cover?
About 108 square feet at 3 inches deep.
How deep should mulch be?
About 2 to 3 inches.
How many bags of mulch are in a yard?
About 13.5 bags of 2 cubic feet.
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- Fill Dirt vs Topsoil: Differences, Uses and Tons to Order
- How Much Does a Yard of Dirt Weigh? Topsoil, Fill, Clay
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