How many shingles are typically found in one square of asphalt shingles?

In roofing terminology, a "square" is a unit that refers to an area of 100 square feet. For asphalt shingles, the typical number of shingles that fit into one square is approximately 80. This number can vary slightly based on the specific brand or type of shingle, but 80 is a standard estimate used in the industry.

Each bundle of shingles usually covers about one-third of a square, which means three bundles are needed to cover one square. Given that asphalt shingles are designed to be installed in overlapping rows, having around 80 shingles per square allows for proper coverage while accounting for the overlap necessary to ensure a waterproof seal.

This understanding is crucial for contractors and builders when estimating materials needed for roofing projects, allowing for accurate calculations to minimize waste and ensure adequate coverage of the roofing area. Knowing that there are typically 80 shingles per square is essential for budgeting and project planning, making this figure a foundational piece of knowledge in residential contracting.