What Size Dumpster Do I Need? Complete Guide

September 14, 20255 min read

Choosing the right dumpster size is crucial for your project success and budget. Too small and you'll need multiple hauls; too large and you're wasting money. This guide will help you select the perfect size.

Quick Answer: Most Common Sizes by Project

  • 10 Yard: Small bathroom remodel, garage cleanout, deck removal
  • 20 Yard: Large bathroom remodel, kitchen renovation, flooring replacement
  • 30 Yard: New construction, whole-house renovation, commercial cleanout
  • 40 Yard: Large construction projects, commercial demolition

Understanding Dumpster Measurements

Dumpster sizes are measured in cubic yards. One cubic yard equals 3 feet x 3 feet x 3 feet (27 cubic feet). Here's what each size actually looks like:

10 Yard Dumpster

Dimensions: 12 ft long x 8 ft wide x 3.5 ft high

Capacity: 3 pickup truck loads

Weight Limit: 1-2 tons typically

Price Range: $250-$450

Best for:

  • Small bathroom or kitchen remodel
  • Garage or basement cleanout
  • Small deck or shed removal
  • Concrete or dirt disposal (heavy materials)

20 Yard Dumpster

Dimensions: 22 ft long x 8 ft wide x 4 ft high

Capacity: 6 pickup truck loads

Weight Limit: 2-3 tons typically

Price Range: $300-$500

Best for:

  • Large bathroom renovation
  • Kitchen remodel with cabinet removal
  • Flooring removal (up to 2000 sq ft)
  • Large garage cleanout
  • Roof replacement (up to 1500 sq ft)

30 Yard Dumpster

Dimensions: 22 ft long x 8 ft wide x 6 ft high

Capacity: 9 pickup truck loads

Weight Limit: 3-5 tons typically

Price Range: $400-$600

Best for:

  • Major home renovation
  • New construction
  • Commercial office cleanout
  • Large roof replacement (2000+ sq ft)
  • Siding replacement for entire house

40 Yard Dumpster

Dimensions: 22 ft long x 8 ft wide x 8 ft high

Capacity: 12 pickup truck loads

Weight Limit: 4-6 tons typically

Price Range: $500-$750

Best for:

  • Large commercial projects
  • Major construction or demolition
  • Warehouse cleanout
  • Multiple home renovation

Factors That Affect Size Choice

1. Type of Debris

Heavy materials like concrete, dirt, or shingles fill weight limits quickly. You might need a smaller dumpster with higher weight capacity.

2. Project Scope

Always estimate 10-20% more space than you think you need. It's better to have extra room than to need a second dumpster.

3. Local Regulations

Some areas have size restrictions or require permits for dumpsters over 20 yards. Check with your local municipality.

Pro Tips for Choosing Size

  1. When in doubt, go bigger: The cost difference between sizes is often less than ordering a second dumpster
  2. Consider access: Make sure the dumpster can fit in your driveway or placement area
  3. Ask about weight limits: Overweight fees can be expensive ($50-100 per ton over limit)
  4. Bundle projects: If you're doing multiple renovations, combine them into one rental

Calculate Your Exact Dumpster Size

Still unsure? Use our free calculator to get a personalized recommendation based on your specific project.

Use Free Calculator →

Frequently Asked Questions

How much does a dumpster rental cost?

Prices typically range from $250-750 depending on size, location, and rental duration. Most rentals include 7-10 days.

What can't go in a dumpster?

Hazardous materials, tires, batteries, paint, chemicals, and appliances with Freon are typically prohibited.

Do I need a permit?

If placing the dumpster on your property, usually no. Street placement typically requires a permit from your city.

Conclusion

Choosing the right dumpster size saves money and hassle. For most home projects, a 20-yard dumpster works well. When in doubt, use our calculator or call a local provider for guidance.

Last updated: September 14, 2025 | Written by the Dumpster Calculator Team