Roofing Shingles Weight Calculator
Find out how much your old shingles weigh and what size dumpster you need for your tear-off. Pick your shingle type, enter your roof size, and we do the math.
Please enter a valid roof size above zero.
Your Shingle Estimate
Estimated Weight Range
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Roof Squares
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Roof Sq Ft
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Layer(s)
Dumpster Recommendation
This is a rough estimate. Actual weight depends on shingle manufacturer, moisture, underlayment, flashing, and nails. Steeper roofs have more surface area. When in doubt, size up. Contact your local dumpster provider for the most accurate recommendation.
Reference Data
Shingle Weight by Type
One “square” of roofing covers 100 square feet. These are industry-standard weight ranges from major manufacturers.
| Shingle Type | Avg Weight / Square | Typical Use |
|---|---|---|
| Three-Tab Asphalt | 230 – 250 lbs | Budget-friendly, older homes |
| Architectural Asphalt | 400 – 430 lbs | Most new construction, premium look |
| Slate | 800 – 1,000 lbs | High-end, historic properties |
Why 20 Yard Max?
Shingles are dense and heavy. Most haulers cap shingle loads at 20 yard dumpsters because anything bigger filled with shingles exceeds safe road weight limits. A 20 yard at 70% capacity holds around 6 to 7 tons.
Weight Limits Matter
Overloaded dumpsters get hit with overage fees, usually $50 to $100 per extra ton. This calculator helps you plan the right number of containers upfront, saving money and avoiding surprises.
Pitch Changes Everything
A steeper roof has more surface area than its footprint suggests. We use a standard 6/12 pitch to estimate, but steep roofs (8/12+) can add 20% or more to the total weight. When unsure, round up.
Multiple Layers = More Weight
Some older roofs have 2 or even 3 layers of shingles stacked on top of each other. Each layer multiplies the total weight. Double-layer roofs are common and can double your dumpster count.
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