One yard of mulch equals 27 cubic feet
A cubic yard is a standard measurement in landscaping and construction. It is a cube that measures 3 feet on each side: 3 feet × 3 feet × 3 feet = 27 cubic feet. When you order a yard of mulch, you are ordering 27 cubic feet of material, whether it arrives loose in a truck or compressed in a bag.
This matters because mulch is often sold by the cubic yard, but the bags you buy at a garden center are labeled in cubic feet. Understanding the conversion helps you figure out how many bags equal a yard, or how many yards you need for your project.
Key Takeaways
- One cubic yard of mulch contains exactly 27 cubic feet of material.
- Bulk mulch delivered by truck is measured and priced by the cubic yard, while bagged mulch is labeled in cubic feet.
- To find how many bags equal one yard, divide 27 by the cubic feet listed on the bag.
- Mulch compresses over time, so a yard delivered loose will settle to less volume after a few weeks.
- Measuring your garden bed in square feet and deciding on mulch depth will tell you how many cubic feet you actually need.
How to convert cubic yards to cubic feet for your project
Start by measuring your garden bed in square feet. Multiply length × width. Then decide how deep you want the mulch layer. Most landscapers recommend 2 to 4 inches of mulch for weed suppression and moisture retention.
Convert your depth to feet by dividing inches by 12. A 3-inch layer is 0.25 feet. Multiply your square footage by the depth in feet to get cubic feet. For example, a bed that is 100 square feet with 3 inches of mulch needs 100 × 0.25 = 25 cubic feet. That is less than one full yard.
If you need more than 27 cubic feet, order by the yard. If you need less, you can buy bags. A standard 2-cubic-foot bag means you would need 13 to 14 bags to equal one yard (27 ÷ 2 = 13.5).
Why bulk mulch and bagged mulch measure differently
Bulk mulch delivered by truck is loose and fluffy when it arrives. The 27 cubic feet you ordered is the actual volume sitting in your driveway. Bagged mulch is compressed to fit in a smaller package, so the cubic feet printed on the bag reflects that compressed state.
When you spread loose mulch, it fluffs up slightly and may appear to cover more area than the same mulch would in a bag. Over the first few weeks, loose mulch also settles and compacts as it absorbs water and begins to break down. A yard delivered loose may settle to 20 to 24 cubic feet after a month, depending on weather and how much you water.
Bagged mulch does not settle as much because it is already compressed. What you see on the label is close to what you get when you spread it.
Comparing cost: bulk versus bags
Bulk mulch is usually cheaper per cubic foot when you need a large volume — typically 3 or more yards. A delivery fee applies, but the per-yard cost is lower than buying individual bags. Bagged mulch costs more per cubic foot but requires no delivery and works well for small projects or topping off an existing bed.
Calculate the total cubic feet you need, then compare the price of bulk delivery against the cost of bags. If you need 50 cubic feet, that is less than 2 yards. Two yards of bulk mulch plus delivery might cost $60 to $100 depending on your location, while 25 bags at $3 to $5 each would cost $75 to $125. Prices vary widely by region and mulch type, so get quotes from local suppliers.
Common mulch types and their cubic foot coverage
Different mulch materials have different weights and densities, but they all measure the same way: 27 cubic feet per yard. The difference is in how much area one yard covers at a given depth.
Shredded hardwood mulch, the most common type, covers roughly 300 to 350 square feet at 2 inches deep, or 200 to 230 square feet at 3 inches deep. Bark chips are lighter and fluffier, so one yard may cover slightly more area. Dyed mulch is usually denser and may cover slightly less. Wood chips from tree removal are often free or very cheap but vary in size and density, so coverage is less predictable.
The cubic yard measurement stays the same. What changes is how far that 27 cubic feet stretches across your garden.
How to order the right amount of mulch
Measure your beds in square feet. Add up all the areas you plan to mulch. Decide on depth — 2 to 3 inches is standard for most gardens. Multiply square feet by depth in feet to get cubic feet needed.
If the total is under 27 cubic feet, buy bags. If it is 27 to 54 cubic feet, order 1 to 2 yards. If it is more, order accordingly. Most suppliers will round up slightly, and it is better to have a little left over than to run short and need a second delivery.
When you call for a quote, tell the supplier your square footage and desired depth. They can calculate cubic yards for you and give you a price. Ask whether the price includes delivery and whether there is a minimum order.
What happens to mulch after you spread it
Loose mulch settles within the first month as it absorbs moisture and the pieces compress under their own weight. You may notice the layer looks thinner than when you first spread it. This is normal. The mulch is still doing its job of suppressing weeds and retaining moisture.
Over a year, mulch breaks down and becomes part of the soil. You will need to add more mulch annually to maintain the original depth. Most gardeners add 1 to 2 inches of fresh mulch each spring or fall. This is much less than the initial process, so you can usually buy bags for the top-up rather than ordering bulk.
Dark mulch fades to gray or brown as it weathers. Dyed mulch holds its color longer. Neither fading nor color change affects how well the mulch works.
Frequently Asked Questions
How many bags of mulch equal one cubic yard?
It depends on the bag size. A standard 2-cubic-foot bag means you need about 13 to 14 bags per yard (27 ÷ 2 = 13.5). A 3-cubic-foot bag requires 9 bags per yard. Check the label on the bags you are buying and divide 27 by that number.
Will a cubic yard of mulch fit in my truck?
A cubic yard is 3 feet × 3 feet × 3 feet. Most pickup trucks have a bed about 5 feet wide and 8 feet long, which is enough space, but loose mulch is bulky and may pile higher than the truck bed sides. Ask the supplier if they can compress it slightly or deliver instead. Bagged mulch is easier to transport in a truck.
How deep should mulch be?
Two to 3 inches is the standard depth for most gardens. This is deep enough to suppress weeds and retain soil moisture without piling mulch against tree trunks or plant stems, which can cause rot. Four inches is the maximum before you risk suffocating shallow-rooted plants.
Does mulch weight matter when ordering?
Weight matters for delivery and handling but not for the cubic yard measurement. Wet mulch weighs more than dry mulch. Bark chips weigh less than hardwood mulch. The supplier will know the weight of their product and can tell you whether your driveway or truck can handle it. A cubic yard of mulch typically weighs 400 to 800 pounds depending on type and moisture.
Can I mix different types of mulch?
Yes. You can use shredded hardwood in planting beds and wood chips in pathways, or blend them. The cubic yard measurement applies to each type separately, so calculate how many cubic feet of each you need and order accordingly.