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How Cubic Yards Help You Plan Your Cleanup

Cubic yards measure how much space your debris takes up. They’re the standard way to size roll off dumpsters and estimate how much material you have to toss. With our guidance, it's easy to calculate your debris in cubic yards and choose the right dumpster rental.

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Home>Resources>What Is a Cubic Yard?

The Basics of Cubic Yards

Cubic yards (yd³) help determine which dumpster size fits your project best. Whether you’re a homeowner clearing out your garage or a contractor managing a remodel, take a minute to familiarize yourself with cubic yards. Understanding them makes estimating your debris simple and helps you avoid overage fees.

What Is a Cubic Yard?

A cubic yard is a unit of volume that’s 3 feet wide, 3 feet long and 3 feet tall (or 1 yard on each side).

A single cubic yard is about the same size as a washing machine.

A black open umbrella being used in the rain.
A black open umbrella being used in the rain.

Why Cubic Yards Matter When You Rent a Dumpster

Each dumpster size has a specific capacity for debris. A 10 yard dumpster can hold up to 10 cubic yards of material while a 20 yard dumpster has space for 20 cubic yards. A key part of planning your dumpster rental is to measure your waste in cubic yards. With an estimate on hand, you can then:

  • Match your project to the right size bin
  • Stay within the dumpster's fill line
  • Prevent overage fees or pickup delays

How Do You Calculate Cubic Yards?

Converting a pile of debris into cubic yards isn't as complicated as it seems. Just distribute your debris evenly in a rectangular shape and follow the steps below.

1. Take Your Measurements

Measure the length, width and height of your debris pile in feet. When in doubt, it's better to round up slightly.

2. Calculate Volume in Cubic Feet

Multiply those three measurements to find cubic feet.

3. Convert to Cubic Yards

Divide your total by the conversion factor of 27 and you have your estimate in cubic yards.

Example Calculation

If your debris pile is 12 feet long, 6 feet wide and 4 feet high, the calculation process will look like this:

(12 × 6 × 4) ÷ 27 = 10.7 cubic yards

To ensure you have enough space for 10.7 cubic yards of debris, we would recommend you round up to a 12 yard dumpster.  

What Does 1 Cubic Yard Look Like?

It can be tricky to visualize cubic yards. Here are a few comparisons to give you a better sense of their size:

  • 1 cubic yard = 3 standard trash cans
  • 1 cubic yard = 1 standard washing machine
  • 3 cubic yards ≈ 1 pickup truck bed
A black open umbrella being used in the rain.

Use these equivalents to understand how much debris each dumpster size holds:

Dumpster Size

33-Gallon Trash Bags

Wheelbarrow Loads

Pickup Truck Loads

10 cubic yard dumpster

50–70

80–100

3

12 cubic yard dumpster

65–85

98–118

3–4

15 cubic yard dumpster

80–100

125–145

4–5

20 cubic yard dumpster

110–130

170–190

6

30 cubic yard dumpster

170–190

260–280

9

40 cubic yard dumpster

230–250

350–370

12

How Much Does 1 Cubic Yard Weigh?

Before you make a final decision on your dumpster, remember that not all materials weigh the same. A cubic yard’s weight depends entirely on the debris type. Some materials are light but sizable, while others are dense and heavy.

Because every material has a different density, two debris piles can appear to be the same size but have completely different weights. Use our weight calculators to estimate your material’s total tonnage and stay within your weight limit.

Here’s what a single cubic yard typically weighs for common bulk material types:

Material Type

Weight in Pounds

Weight in Tons

1 cubic yard of mulch

~400 lbs

0.2 tons

1 cubic yard of yard waste

~400–800 lbs

0.2–0.4 tons

1 cubic yard of household junk

~500 lbs

0.25 tons

1 cubic yard of drywall

~700–1,000 lbs

0.35–0.5 tons

1 cubic yard of dirt

~2,000 lbs

1 ton

1 cubic yard of gravel

~2,800 lbs

1.4 tons

1 cubic yard of concrete

~4,000 lbs

2 tons

Weights shown are average estimates for 1 cubic yard. Your actual tonnage may differ.

Find the Right Dumpster for Your Debris

Cubic Yard FAQs

What are common mistakes in calculating cubic yards?

How many cubic feet are in a cubic yard?

How do I convert square feet to cubic yards?

How do I calculate cubic yards of concrete, dirt or mulch?

How can I convert the volume of my debris (in cubic yards) into an estimated weight (in tons)?

How does the type of debris affect the cubic yard capacity I need?

Should I account for material expansion when calculating cubic yards?

Next Steps in Planning Your Cleanup

Dumpster Size Guide

See our containers side by side and find the one that suits your project.

Compare Dumpster Dimensions

Dumpster Rental 101

Review the dumpster rental process so you know what to expect.

Learn How Dumpster Rentals Work

Weight Calculators

Find the calculator for your material type and get a quick estimate.

Calculate Your Debris Weight