What Size Dumpster Do I Need?
The right dumpster size depends on three factors: project type, project scope, and debris weight. Small cleanouts typically need 10-15 yards. Medium renovations like kitchens usually require 15-20 yards. Large projects or whole-house work often need 30-40 yards—or multiple dumpsters for heavy materials like concrete. Use our calculator above for a personalized recommendation based on your specific project details.
Dumpster Size Comparison
Compare standard roll-off dumpster sizes to find the right fit for your project.
| Size | Dimensions | Best For | Truck Loads |
|---|---|---|---|
| 10 yard | 14'L × 8'W × 3.5'H | Small cleanouts, heavy materials | 3-4 |
| 15 yard | 16'L × 8'W × 4.5'H | Bathroom/small kitchen remodels | 4-5 |
| 20 yard | 22'L × 8'W × 4.5'H | Roofing, medium renovations | 6 |
| 30 yard | 22'L × 8'W × 6'H | Large cleanouts, multi-room remodels | 9 |
| 40 yard | 22'L × 8'W × 8'H | Whole house, new construction | 12 |
Truck loads = equivalent pickup truck loads of debris
When to Choose Each Size
- 10-yard: Best for single-room cleanouts or projects with heavy materials (concrete, brick) where weight limits matter more than volume.
- 15-yard: A good middle ground for bathroom remodels or small kitchen updates—fits about 4-5 pickup truck loads.
- 20-yard: The most popular size—handles roofing tear-offs (up to 1,500 sq ft single-layer), medium remodels, and garage cleanouts.
- 30-yard: Ideal for whole-house cleanouts and multi-room renovations where you're removing flooring, drywall, and fixtures across multiple rooms.
- 40-yard: Reserved for major construction, large demolitions, or commercial projects—holds roughly 12 pickup truck loads.
Pro tip: If your estimate falls between two sizes, choose the larger one. The cost difference is usually $50-100, but exceeding included weight means overage fees of $50-100/ton—and if you exceed max weight, you'll need a second rental starting at $300+.
Average Dumpster Rental Costs
Typical 7-day rental prices vary by location and provider. These ranges represent national averages.
| Size | Price Range | Included Weight |
|---|---|---|
| 10 yard | $300 – $450 | 2 tons |
| 15 yard | $350 – $500 | 2.5 tons |
| 20 yard | $400 – $600 | 3 tons |
| 30 yard | $450 – $650 | 4 tons |
| 40 yard | $550 – $800 | 5 tons |
Factors affecting cost: Location, rental duration, debris type, delivery distance, and weight overages ($50-100/ton over included weight).
How to Use This Calculator
This calculator offers two modes: Quick Estimate for fast ballpark figures when you don't know exact measurements, and Detailed Estimate for precise calculations based on square footage and debris type.
Select your project type, choose a size tier (Small to Extra Large), and optionally specify debris type. The calculator computes volume and weight, then recommends the most cost-effective dumpster size—including scenarios where multiple dumpsters may be needed.
Quick Estimate assumes standard debris. For heavy materials (concrete, brick) or roofing with multiple layers, use Detailed Estimate for better accuracy.
Calculation Methodology
Base Volume by Project Type
| Project Type | Base Volume (yd³) |
|---|---|
| Garage Cleanout | 10 |
| Basement Cleanout | 12 |
| Whole House Cleanout | 25 |
| Bathroom Remodel | 8 |
| Kitchen Remodel | 15 |
| Single Room Remodel | 8 |
| Multi-Room Remodel | 25 |
| Whole House Remodel | 40 |
| Roofing (Shingle Tear-off) | 15 |
| Siding Removal | 15 |
| Deck/Patio Removal | 18 |
| Landscaping | 10 |
| New Home Construction | 40 |
| Small Demolition | 30 |
| Large Demolition | 60 |
Note: Garage cleanouts and roofing projects use specialized square-footage-based formulas for improved accuracy. The base volumes shown above are reference values; actual calculations factor in garage dimensions or roof area.
Size Multipliers & Safety Buffer
Projects are divided into 4 size tiers, each with a volume multiplier. The calculator then adds a 15% safety buffer to account for unexpected debris and variations in material density.
| Size | Multiplier |
|---|---|
| Small | 1.0× |
| Medium | 1.5× |
| Large | 2.0× |
| Extra Large | 2.5× |
The calculator displays project-specific size labels with descriptions. For example, garage cleanouts show 1-Car, 2-Car, 3-Car, 4+ Car; bathrooms show Half Bath, Standard, Master, Luxury. The underlying multiplier is the same regardless of label.
Debris Types & Weight Limits
| Debris Type | Examples | Density (lbs/yd³) | Max Size |
|---|---|---|---|
| Light | Cardboard, packaging, insulation, styrofoam | 150 | 40 yards |
| Standard | Furniture, appliances, wood, drywall | 400 | 40 yards |
| Heavy | Concrete, brick, dirt mixed with other debris | 1,800 | 10 yards only |
About our methodology: Volume estimates are derived from industry data compiled by the National Association of Home Builders[1] and waste management industry standards. Debris densities follow EPA guidelines for construction and demolition materials[2]. The 15% safety buffer reflects common contractor practice recommended by waste industry professionals[3].
Important Considerations
When to size up: If you're unsure about scope or have an older building, choose a larger dumpster. It often costs less than overage fees or a second rental.
Prohibited items: Hazardous materials (paint, chemicals, batteries), appliances with refrigerants, tires, electronics, and medical waste. Check with your provider for their specific list.
Permits & placement: Dumpsters on public streets typically require permits. For delivery, ensure a flat, hard surface with 60 feet of overhead clearance and 50 feet of straight approach for the truck.
Loading tips: Break down large items, load heavy items first, and distribute weight evenly. Don't stack above the fill line—overloaded dumpsters may be refused or charged extra.
Seasonal Considerations
Peak season (April–September): Spring and summer are the busiest times for dumpster rentals as homeowners tackle cleanouts, renovations, and roofing projects. Book 1-2 weeks ahead during these months to ensure availability. Prices may be 10-15% higher due to demand.
Off-peak season (October–March): Fall and winter typically offer better availability and potentially lower prices. However, cold weather can limit certain projects (roofing, exterior work). Some providers offer off-season discounts of 5-10%.
Holiday periods: Avoid scheduling delivery/pickup around major holidays (Memorial Day, July 4th, Labor Day, Thanksgiving, Christmas) when haulers may have limited hours or be closed.
Weather factors: Wet weather adds weight to debris (especially drywall, insulation, and yard waste), potentially pushing you over weight limits. Snow and ice can delay delivery and pickup. Plan for extra rental days during winter months.
Frequently Asked Questions
Can I put heavy materials in any dumpster size?
No. Concrete, brick, dirt, and other heavy materials must go in 10-yard dumpsters only due to weight limits. Even then, you can only partially fill the dumpster—typically no more than halfway—before hitting the weight limit.
What happens if I exceed the weight limit?
If you exceed the included weight, you'll pay overage fees (typically $50-100 per extra ton). If you exceed the max weight, the hauler may refuse pickup until weight is removed, or charge additional fees.
Is it better to rent one large dumpster or multiple small ones?
Generally, one larger dumpster is more cost-effective than multiple smaller rentals. However, for heavy materials like concrete, you may need multiple 10-yard dumpsters since larger sizes aren't available for heavy debris.
How far in advance should I schedule dumpster delivery?
Book at least 3-5 days ahead for standard delivery. During busy seasons (spring and summer), book 1-2 weeks in advance. Same-day delivery may be available but often costs extra.
What's the difference between included weight and max weight?
Included weight is covered by your base rental fee—no extra charges. Max weight is the absolute limit the truck can legally haul. Between these two limits, you pay overage fees per ton. Exceeding max weight may result in refused pickup or additional charges.
How accurate are the volume estimates in this calculator?
Volume estimates are based on industry standards from waste management professionals and dumpster rental providers nationwide. A 15% safety buffer is included to account for variations. For unusual projects or older buildings with hidden materials, consider sizing up one dumpster size from the recommendation.
What items can't go in a dumpster?
Prohibited items typically include hazardous materials (paint, oil, chemicals), batteries, tires, appliances with refrigerants, electronics, and medical waste. Some providers also restrict mattresses and food waste. Always check with your provider for their specific prohibited items list.
Reference Sources
- NAHB Construction Waste Management – National Association of Home Builders data on residential construction waste volumes and management practices
- EPA C&D Debris Facts and Figures – Construction and demolition debris statistics, material densities, and disposal guidelines
- SWANA Resources – Solid Waste Association of North America industry best practices and safety guidelines
- OSHA Construction Guidelines – Workplace safety regulations for construction and demolition sites
Related Calculators
- Garage Cleanout Calculator – Detailed estimates based on garage size, fullness, and contents
- Concrete & Masonry Debris Calculator – For heavy material disposal (concrete, asphalt, brick)
- Roofing Debris Calculator – For shingle tear-off projects
Disclaimer: Estimates for planning purposes only. Actual volumes vary by material and conditions. Confirm size, weight limits, and pricing with your provider before ordering.
Last updated: January 2026