What is a Square in Roofing?

If you’re about to start the top replacement method, you’re likely doing much research. While researching, you may notice a lot of terms and roofing slang you’ve never heard of before.

We understand that learning all the roofing terms can be overwhelming, especially regarding the keywords you need to know when reviewing your new roof estimate.

One of these essential terms is “roof square.” But what is it, and why do you need to know it?

We here at Bill Ragan Roofing want every homeowner to have all the facts needed to understand their roof investment truly. That’s why we will break down a key term in the roofing industry, a roofing square.

By the end of this article, you’ll learn what a roofing square is and how to calculate the square footage of your roof so you can get an idea of how much you’ll have to spend on a new top.

Who Uses Roofing Squares?

The roofing square altitude measurement is only used within the roofing and building industries. Though you can use the measure to calculate the expense of re-shingling your homes, such tasks are usually reasonably left to an experienced roofing contractor. However, even if you trust your ability to choose the correct amount of materials needed, there are still rare steps you should take before you attempt.

How to Measure a Roofing Square

Now that you understand what a roofing square is, your next phase is to look at how to measure it. This is the better challenging part of the task but also the most significant one. How exactly do you measure a roofing square?

Recall that a roofing square equals 100 square feet of the roof. To decide how many courts are on the top, you must calculate the square footage and divide it by 100. The measurement does not change whether you measure for a yard of roofing shingles or a square of underlayment, so cling to the same method.

Here are the steps to calculating your roof and estimating how many squares it is:

  1. Make sure you’re safe: Ensure your ladder is in good working order and put it up in a safe, level spot. Double-check that there are no problems with your ladder or its placement that may result in you slipping from the roof.
  2. Measure more than once: To ensure you calculate accurately, do the job better than earlier. Estimate the length and width of your roof. For example, you may have a simple top made of two rectangles, and the height and width of each rectangle are 30 feet and 20 feet.
  3. Estimate the square footage: Once you have measured the length and width of each roof section, you can calculate how large your roof is in square feet. Multiply the width by the height of each department to calculate the square footage. The square footage of our example roof would be 30 x 20 = 600 square feet for each rectangle and 600 + 600 = 1,200 square feet for the total square footage.
  4. Estimate the roofing square: To estimate the number of roofing squares from the square footage, you must divide your square footage by 100. The example roof would be 1,200 square feet ÷ 100 = 12 roofing squares.

What Is the Cost per Square?

The cost per square depends on the types of materials you use. Standard asphalt shingle roof alternates, including labor costs, usually fall between $400 to $550 per square, depending on your geographic location. Tiles and different materials manage to cost more than asphalt shingles.

  • The size of your roof: Of course, the bigger your roof is, the more materials you will need and the more extended it will take to reroof, so it will cost more than a smaller roof.
  • The pitch of your roof: A extremely steep roof can be more complex or challenging to access and can make establishing a new roof more difficult.
  • If the old roof needs to be released, new shingles can occasionally be placed over aging shingles. It will be more expensive if your roofers need to remove the old top before establishing the new roof.
  • If you have any remaining warranty on your roof, the deposit may cover some of the materials or labor if your roof is still under contract.
  • The time of year you need work done: It may be less costly to have your roof repaired or replaced during the off-season.


Well, there you are. You now know what a roofing square is and how to calculate them. Leaving these things to the professionals is always strongly recommended if you need more clarification on your abilities.

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