When it comes to roofing, understanding measurements is crucial, especially when you’re dealing with the size of a house. “How many squares is a 1500 sq ft house?” is a common question during roofing projects.

In this blog, we’ll break it down simply, using everyday examples, so you can grasp this concept and make informed decisions about your roofing needs.

1. What Is a Square in Roofing?

Before we dive into the 1500 square feet house, let’s clarify what a “square” means in roofing. In roofing lingo, a “square” is a unit of measurement used to quantify the area of a roof. One square is equivalent to 100 square feet. Think of it as a convenient way to express large roofing areas without dealing with long strings of numbers.

2. Calculating the Roof Area:

Now, let’s calculate the area of a 1500 square foot house in squares. To do this, divide the total square footage (1500 sq ft) by 100 (since one square equals 100 sq ft). So, 1500 sq ft ÷ 100 sq ft/square = 15 squares.

3. A 15-Square Roof:

Imagine a 15-square roof as a giant puzzle with 15 equal pieces, each measuring 100 square feet. This is the area your roofing materials need to cover to protect your 1500 sq ft house.

4. Roofing Material Considerations:

The number of squares required for your roof depends on the type of roofing material you choose and its coverage. For instance:

  • Asphalt Shingles: One square of asphalt shingles typically covers about 100 square feet, so you’d need 15 squares for a 1500 sq ft house.
  • Metal Roofing: Metal roofing panels vary in size, but for standard 3-foot wide panels, you’d need around 17 squares to cover 1500 sq ft.
  • Wood Shingles or Shakes: Wood shingles and shakes might require around 20-25 squares to cover 1500 sq ft, as they are typically smaller.


So, to answer the question, a 1500 square foot house requires approximately 15 squares of roofing material. Understanding this helps you estimate your roofing project’s needs more accurately and ensures your house is protected from the elements.


As a civil engineer and roofer, I love to share the experience that I have gained through the last couple of years. In the roofing industry, practical experience is a very crucial fact that can help you a lot. Hence, I want to help you with my blog.

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