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How To Convert Square Feet To Roofing Squares

November 30, 2025

2 min read

To convert square feet to roofing squares, you divide the total square feet by 100. One roofing square equals 100 square feet. This is the standard measurement used by roofers and contractors. It makes pricing and estimates easier to understand. Knowing this conversion helps you compare roof costs and understand quotes better.

What Is a Roofing Square?

A roofing square is simply 100 square feet of roof space. Roofers use this term instead of saying “100 square feet” every time. It speeds up conversations and keeps things simple on job sites.

The average U.S. roof size is 2,647 square feet, or 26.47 squares. According to the National Association of Home Builders, this measurement helps contractors plan materials and labor.

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How Do You Do the Math?

The math is easy. Take your total roof size in square feet and divide by 100.

For example, if your roof is 1,700 square feet, divide 1,700 by 100. You get 17 squares. According to RubyHome, roof installation costs range from $4 to $40 per square foot, or $6,800 to $68,000 for a 1,700 square foot roof.

Roof Size (Sq. Ft.)Roofing SquaresEstimated Cost Range
1,00010$4,000, $40,000
1,70017$6,800, $68,000
2,00020$8,000, $80,000
2,64726.47$10,588, $105,880

Why Use Roofing Squares?

Roofers use squares to make pricing clearer and faster. It is easier to say “17 squares” than “1,700 square feet.” Material costs are also listed per square.

According to RubyHome, architectural asphalt shingles cost $4.50 to $8.25 per square foot. Basic asphalt shingles run $4.25 to $4.95 per square foot. Metal roofing ranges from $5.50 to $17.05 per square foot, depending on the type.

What Should You Know About Roof Replacement Costs?

The average roof replacement cost is $9,526. According to RubyHome, prices range from $5,868 to $13,217 for most homes. Premium options can cost up to $80,000.

Asphalt shingles dominate the market at about 80% of projects. According to industry data, 85% of the U.S. roofing industry revenue comes from replacement of existing roofs, not new construction. This means most roofs get replaced after aging, not installed on new homes.

DIY work can save about 50%, but mistakes often lead to higher long-term costs from leaks and damage. Understanding square footage and squares helps you get accurate quotes and compare prices fairly.

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Connect with an experienced roofing company to discuss your roofing needs and schedule an inspection.