A roofing square is 100 square feet. This is the standard measurement that roofers and contractors use to measure roof size and calculate costs. If you have a roof that is 2,000 square feet, that means your roof is 20 squares. Understanding this measurement helps you get accurate pricing and know how much material you need.
Why Do Roofers Use Squares?
Roofers use the word “square” because it makes math easier. Instead of saying a roof is 2,647 square feet, they say it is about 26.47 squares. According to the National Association of Home Builders, the average U.S. roof size is 2,647 square feet or 26.47 squares.
This simple measurement helps contractors give you fast quotes. It also helps them order the right amount of materials.
Related articles:
- How Many Square Feet in One Roofing Square
- How Many Square Feet in a Bundle of Roofing Shingles
- How Many Sq Ft in a Roofing Square
- How Many Feet in a Square Roofing
- How Many Feet Are in a Roofing Square
- How Many Square Feet Are in a Square of Roofing
- How Many Square Feet in a Square of Roofing Shingles
- How Many Feet in a Roofing Square
How to Calculate Your Roof Size
To find how many squares your roof has, measure the total square feet and divide by 100. For example, if your roof is 1,700 square feet, you have 17 squares.
Roof installation costs range from $4 to $40 per square foot, according to RubyHome (2025). This means a 1,700 square foot roof could cost between $6,800 and $68,000 to replace. The price depends on your material choice and where you live.
Material Costs Per Square
Different materials cost different amounts per square. Here is a simple breakdown:
| Material Type | Cost Per Square Foot | Cost Per Square (100 sq ft) |
|---|---|---|
| Basic asphalt shingles | $4.25-$4.95 | $425-$495 |
| Architectural asphalt | $4.50-$8.25 | $450-$825 |
| Metal roofing | $5.50-$17.05 | $550-$1,705 |
| Copper tiles | $21.00-$39.70 | $2,100-$3,970 |
What Affects Your Total Roof Cost?
The average roof replacement cost is $9,526, according to RubyHome (2025). But this can range from $5,868 to $13,217. The cost depends on your roof size, material type, and labor in your area.
About 5 million roofs are installed per year in the U.S., according to industry data. According to the National Association of Home Builders, the average U.S. roof is 26.47 squares. Knowing this helps you budget for your project. If you understand squares, you can compare quotes from different roofers more easily and make the best choice for your home.
Related articles:
- How Many Sq Feet in a Roofing Square
- How Many Square Feet in One Square of Roofing
- How Many Roofing Squares in 1600 Square Feet
- How Many Feet in a Square of Roofing
- How Many Bundles in a Roofing Square
- How Many Square Feet Are in a Roofing Square
- How Many Square Feet in Roofing Bundle
Contact a qualified roofing solutions for expert guidance on roof repair, replacement, or installation.