5 yards of mulch equals 135 cubic feet
One cubic yard contains 27 cubic feet. When you multiply 27 by 5, you get 135 cubic feet. This is the conversion you need when a supplier quotes you in yards but your spreading area is measured in feet, or when you want to understand the actual volume you're buying.
The math stays the same whether you're buying wood chips, shredded bark, or any other mulch type. The measurement is about volume, not the material itself. What changes is how much that volume weighs and how far it spreads, depending on the mulch density and your process depth.
Key Takeaways
- Five cubic yards of mulch equals 135 cubic feet, calculated by multiplying 5 yards by 27 cubic feet per yard.
- Cubic yards and cubic feet measure volume the same way; the difference is just the unit size used by suppliers and landscapers.
- To find how many yards you need, measure your bed length and width in feet, decide your mulch depth in inches, and work backward from the cubic feet total.
- Mulch density varies by type, so 135 cubic feet of wood chips weighs differently than 135 cubic feet of shredded hardwood bark.
- Most landscape suppliers deliver in whole-yard increments, so you may need to round up or down from your calculated total.
Why suppliers use cubic yards instead of cubic feet
Landscape suppliers quote mulch in cubic yards because the numbers are smaller and easier to communicate. Saying "5 yards" is simpler than saying "135 cubic feet." A cubic yard is also a standard unit in the landscaping industry, so contractors and homeowners expect it.
When you're planning a project, though, you often work in feet because that's how you measure your garden beds. Converting between the two units prevents ordering too much or too little. Understanding the relationship also helps you spot pricing differences between suppliers—you can compare a quote of $40 per yard against one of $1.50 per cubic foot on the same basis.
How to calculate mulch volume for your beds
Start by measuring your mulch bed in feet. Measure the length and width of the area you want to cover. Then decide how deep you want the mulch layer—typically 2 to 4 inches for most plantings, or up to 6 inches if you want longer-lasting coverage and better weed suppression.
Multiply length × width × depth (in feet, so convert inches to a decimal). For example, a bed that is 10 feet long, 8 feet wide, and 3 inches deep: 10 × 8 × 0.25 = 20 cubic feet. Divide that by 27 to get cubic yards: 20 ÷ 27 = 0.74 yards, which you would round up to 1 yard when ordering.
If you have multiple beds, calculate each one separately and add them together. This gives you the total volume you need. Most suppliers sell in whole-yard increments, so round up to the nearest yard to avoid running short.
Understanding mulch density and weight
Five cubic yards of mulch weighs different amounts depending on the type. Shredded hardwood bark is denser than wood chips. Dyed mulch is often denser than natural mulch because of added colorant. A cubic yard of mulch typically weighs between 400 and 800 pounds when freshly delivered, depending on moisture content and material type.
Weight matters if you're arranging delivery or spreading it yourself. A full 5-yard load can weigh 2,000 to 4,000 pounds, which is why many homeowners ask for delivery rather than hauling it in a truck. If you're buying bagged mulch instead of bulk, the bag weight will be listed on the label, and you can calculate how many bags equal 135 cubic feet by dividing the total volume by the cubic feet per bag.
Common mulch volumes and their cubic yard equivalents
| Cubic Feet | Cubic Yards | Typical Use |
|---|---|---|
| 27 | 1 | Small bed or border, 10×10 feet at 3 inches deep |
| 54 | 2 | Medium bed, 20×10 feet at 3 inches deep |
| 81 | 3 | Large bed, 30×10 feet at 3 inches deep |
| 108 | 4 | Very large bed or multiple smaller beds |
| 135 | 5 | Extensive coverage, 50×10 feet at 3 inches deep |
Ordering and delivery considerations
When you contact a supplier with your cubic yard total, confirm whether they charge a delivery fee and whether there is a minimum order. Some suppliers have a 2-yard minimum; others will deliver 1 yard. Ask whether the price quoted includes delivery or if it is pickup only.
Delivery timing also matters. Mulch is often delivered loose in a dump truck, which means the driver will back up to your property and unload it in a pile. Make sure you have a clear, level spot where the truck can access and where the pile won't damage your lawn or driveway. If access is tight, ask whether the supplier offers hand-spreading for an additional fee.
Bagged mulch versus bulk mulch for 5 yards
Bulk mulch is cheaper per cubic foot than bagged mulch, but bagged mulch is easier to handle and store. A standard mulch bag holds 2 to 3 cubic feet. To equal 5 yards (135 cubic feet), you would need 45 to 68 bags, depending on bag size. That's a lot to stack and carry, which is why bulk delivery makes sense for larger projects.
Bagged mulch is better if you have a small bed, want to add mulch gradually over time, or don't have space for a large delivery pile. Bulk is better if you're covering a large area all at once and have somewhere to store or spread it quickly. Calculate the total cost of both options—sometimes bagged mulch at a discount store is competitive with bulk delivery when you factor in delivery fees.
Frequently Asked Questions
How do I convert 5 yards to cubic feet?
Multiply 5 by 27, since one cubic yard equals 27 cubic feet. The answer is 135 cubic feet. This works for any yard-to-cubic-foot conversion: just multiply the number of yards by 27.
Does mulch settle or compress after it's spread?
Yes, mulch settles over time as it breaks down and compacts. You may lose 10 to 20 percent of the depth in the first few months. This is why many landscapers recommend explore mulch slightly thicker than your target depth, or refreshing it with a thin layer every year or two.
What depth of mulch should I use?
Two to three inches is standard for most garden beds and provides good weed suppression without smothering plant roots. Four to six inches works for areas with heavy foot traffic or where you want longer-lasting coverage. Avoid piling mulch against tree trunks or plant stems, as this can trap moisture and cause rot.
Can I order a partial yard if I need less than 1 yard?
Most bulk suppliers have a minimum order of 1 to 2 yards. If you need less, bagged mulch is usually your only option. Some landscape supply yards will sell partial yards, but you may pay a premium per cubic foot for the convenience.
How long does 5 yards of mulch last before I need to refresh it?
Mulch breaks down at different rates depending on type, climate, and moisture. Wood chips typically last 1 to 2 years before needing a refresh layer. Shredded hardwood bark lasts longer, sometimes 2 to 3 years. In hot, wet climates, breakdown happens faster. You'll know it's time to refresh when the mulch looks thin, faded, or mostly decomposed into soil.