Shingle Dumpster Size Calculator

Dumpster Size Formula:

\[ DS = \frac{S \times T \times W_{shingle}}{27 \times C} \]

Roof Area (S):

ft²

Shingle Layers (T):

Shingle Weight (W):

lbs/ft²

Dumpster Capacity (C):

lbs/yd³

Dumpster Size (cu yd):

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1. What is a Shingle Dumpster Size Calculator?

Definition: This calculator estimates the dumpster size needed for roofing projects based on roof area, shingle layers, shingle weight, and dumpster capacity.

Purpose: It helps roofing contractors and homeowners determine the appropriate dumpster size for shingle removal projects.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ DS = \frac{S \times T \times W_{shingle}}{27 \times C} \]

Where:

\( DS \) — Dumpster size (cubic yards)
\( S \) — Roof area (square feet)
\( T \) — Number of shingle layers
\( W_{shingle} \) — Weight per square foot (typically 2.5-3 lbs/ft² for asphalt shingles)
\( C \) — Dumpster capacity (pounds per cubic yard, typically 1000 lbs/yd³)

Explanation: The formula calculates the total weight of shingles to be removed and converts it to dumpster volume based on weight capacity.

3. Importance of Accurate Dumpster Sizing

Details: Proper dumpster sizing ensures efficient waste removal, avoids multiple hauls, and helps control project costs.

4. Using the Calculator

Tips: Enter the roof area in square feet, number of shingle layers (typically 1-3), shingle weight (default 2.75 lbs/ft²), and dumpster capacity (default 1000 lbs/yd³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical weight of asphalt shingles?
A: Most asphalt shingles weigh between 2.5-3 lbs per square foot, with 2.75 lbs/ft² being a common average.

Q2: How do I determine the number of shingle layers?
A: Inspect the roof edge where shingles terminate. Each layer will be visible as a distinct thickness (1 layer = original, 2 layers = one overlay, etc.).

Q3: What affects dumpster capacity (C)?
A: Capacity varies by dumpster type and provider. Standard construction dumpsters typically handle 1000 lbs per cubic yard.

Q4: Does this include underlayment or other materials?
A: No, this calculates shingle weight only. Add 10-15% for underlayment, flashing, and other roofing materials.

Q5: Should I round up the dumpster size?
A: Yes, always round up to the nearest standard dumpster size (typically 10, 15, 20, 30, or 40 cubic yards).