One yard of mulch equals 27 cubic feet

A cubic yard is a standard measurement in landscaping, and it always converts to the same volume: 27 cubic feet. This is true whether you are buying mulch, soil, gravel, or compost. The math is straightforward — a yard is 3 feet long, 3 feet wide, and 3 feet deep, which multiplies to 27 cubic feet.

When you order mulch by the yard, you are ordering that full 27 cubic feet of material. Knowing this number matters because it helps you figure out how much mulch you actually need for your beds and whether a bulk delivery makes sense compared to buying bags.

Key Takeaways

  • One cubic yard of mulch is always 27 cubic feet, regardless of mulch type or where you buy it.
  • A typical bag of mulch holds 2 to 3 cubic feet, so one yard equals roughly 9 to 13 bags depending on bag size.
  • Bulk mulch is usually cheaper per cubic foot than bagged mulch, but only if you need at least 3 to 5 yards.
  • To find how many yards you need, measure your bed in feet, multiply length by width by depth (in feet), then divide by 27.

How to calculate mulch depth for your beds

The amount of mulch you need depends on the size of your beds and how deep you want the layer. Most landscapers recommend 2 to 4 inches of mulch for flower and shrub beds — 2 inches if you are refreshing an existing bed, 3 to 4 inches if you are starting fresh or want better weed suppression.

To find your yardage, measure the length and width of each bed in feet, then multiply by the depth you want in feet (2 inches = 0.17 feet, 3 inches = 0.25 feet, 4 inches = 0.33 feet). Add up all your beds, then divide the total by 27. That gives you the number of yards to order.

For example: a bed that is 10 feet long, 4 feet wide, and you want 3 inches deep. That is 10 × 4 × 0.25 = 10 cubic feet. If you have three beds like that, you have 30 cubic feet total, which is just over 1 yard (30 ÷ 27 = 1.1 yards).

Bagged mulch versus bulk mulch

A standard bag of mulch holds either 2 or 3 cubic feet, depending on the brand and type. At 2 cubic feet per bag, one yard requires 13.5 bags. At 3 cubic feet per bag, you need 9 bags. Bagged mulch costs more per cubic foot but works well for small projects or if you do not have a place for a delivery truck to park.

Bulk mulch delivered by the yard costs less per cubic foot — often 30 to 50 percent less than bagged — but requires a minimum order, usually 3 to 5 yards depending on the supplier. If your project is smaller than that, bags are usually the better choice. If you are covering a large area or plan to mulch again next year, bulk is worth the savings.

Why the cubic yard standard matters

Landscaping suppliers use cubic yards because it is a consistent, straightforward-to-measure unit. Whether you are in California or New York, one yard is always 27 cubic feet. This makes it straightforward to compare prices between suppliers and to estimate how much material you need without confusion.

The cubic yard is also the standard for soil, compost, and gravel, so once you understand how to calculate yardage for mulch, you can use the same method for any landscape material. This consistency is why landscapers and contractors quote everything in yards rather than bags or pounds.

Common mulch types and their weight

Different mulch types weigh different amounts per cubic yard, which matters if you are concerned about delivery weight or how much material your truck can carry. Shredded hardwood mulch typically weighs 400 to 600 pounds per yard. Pine bark mulch is lighter, usually 300 to 400 pounds per yard. Colored mulch (dyed) often weighs more because of the added moisture and dye, sometimes 600 to 800 pounds per yard.

The volume stays the same — 27 cubic feet — but the weight varies. If you are picking up mulch yourself in a truck, knowing the weight helps you avoid overloading. If you are having it delivered, the supplier will tell you the weight and whether your driveway can handle it.

How to order the right amount

Measure your beds carefully and add 10 percent extra to your total yardage. Mulch settles over time, and you may have small areas you did not account for. Ordering slightly more is cheaper than placing a second small order later.

When you call a supplier, tell them the total cubic feet or yards you need and ask whether they have a minimum order. Ask the price per yard and whether delivery is included or costs extra. Some suppliers charge a flat delivery fee; others charge by distance. Get the total price before you commit, and ask when they can deliver — many have a waiting list during spring and early summer.

Frequently Asked Questions

How many bags of mulch do I need to equal one yard?

It depends on bag size. A 2-cubic-foot bag requires 13.5 bags per yard. A 3-cubic-foot bag requires 9 bags per yard. Check the label on the bags you are buying to know which applies to you.

Does mulch type change how many cubic feet are in a yard?

No. One cubic yard is always 27 cubic feet, whether it is pine bark, hardwood, or colored mulch. The type affects weight and how long it lasts, but not the volume.

What if I only need a small amount of mulch?

Buy bags. Bulk delivery has a minimum order, usually 3 to 5 yards. For anything smaller, bagged mulch from a garden center or hardware store is faster and cheaper than trying to arrange a partial-yard delivery.

Can I use the cubic yard measurement for other landscape materials?

Yes. Soil, compost, gravel, and sand are all sold by the cubic yard and follow the same 27-cubic-foot conversion. Once you know your yardage, you can order any of these materials using the same number.

How deep should mulch be in my beds?

Two to four inches is standard. Use 2 inches if you are refreshing an existing bed, 3 to 4 inches if you are starting fresh or want stronger weed control. Deeper than 4 inches can trap moisture and harm plant roots.