Shingles How Many Bundles in a Square?

How Many Bundles of Shingles in a Square?

When planning a roofing project, understanding how many bundles of shingles you'll need is crucial. A square of shingles typically covers 100 square feet of roof area, but the number of bundles required per square can vary depending on the type of shingle.

3-Tab Shingles

• Each bundle covers 33.3 square feet
• 3 bundles per square

Architectural Shingles

• Each bundle covers 100 square feet
• 1 bundle per square

Premium Shingles

• Each bundle covers 110 square feet
• 0.91 bundles per square

Calculate Shingle Bundle Quantity

To determine the number of bundles you need, follow these steps:

1. Calculate the roof area in square feet by measuring the length and width of each roof plane and multiplying them together.
2. Divide the roof area by 100 to determine the number of squares.
3. Multiply the number of squares by the number of bundles required per square.

Example Calculation

Let's say your roof has an area of 2,000 square feet.

1. 2,000 square feet / 100 = 20 squares
2. For 3-tab shingles (3 bundles per square): 20 squares x 3 bundles/square = 60 bundles
3. For architectural shingles (1 bundle per square): 20 squares x 1 bundle/square = 20 bundles

Factors Affecting Shingle Coverage

• Shingle size: Larger shingles cover more area, reducing the number of bundles needed.
• Overhang: Shingles that overhang the roof edge by 1 to 2 inches increase the coverage per bundle.
• Waste factor: Allow for approximately 5-10% waste due to cutting and other factors.
• Roof pitch: Steeper roofs require more shingles due to increased overhang and exposure to the elements.

Consider These Tips

• Choose high-quality shingles to ensure durability and longevity.
• Plan for extra bundles to account for waste and potential repairs.
• Consult with a roofing professional for accurate measurements and installation guidance.
• Ask your roofing contractor about any discounts or promotions on shingles.

Common Mistakes to Avoid

• Underestimating bundle quantity: Ordering too few bundles can delay your project and cost you more money.
• Overestimating bundle quantity: Purchasing too many bundles can be wasteful and result in excess material.
• Ignoring roof complexity: Complex roofs with multiple angles and valleys require more shingles.
• Not accounting for waste: Neglecting waste can lead to shortages and delays.

Conclusion

Knowing how many bundles of shingles you need in a square is essential for planning a successful roofing project. By carefully considering the factors that affect shingle coverage, you can ensure you have the right amount of material to complete your installation.