How Big is a Square of Shingles?

Are you considering replacing your faulty roof and wondering how much material will be needed? The answer lies in understanding the basics of shingles, such as their size. Calculating your roof’s square footage can seem daunting, but you dont have to be a roofing industry professional to figure it out! In this post, we’ll go into detail about the varying sizes of standard roofing shingles, plus tips on accurately calculating how many roofing square you need for your job. So don’t worry – you don’t have to struggle with complex math equations to understand what goes into getting that aging roof replaced; we at Magnum Roofing & Construction have you covered! Let’s get started!

Roof shingles are available in various sizes and colors, allowing homeowners to choose the right product for their homes. Professional roofers typically take into account the size and material of shingles, as well as climate, pitch, and slope, when choosing a product for a customer. Shingles can also be augmented with other roofing products, such as underlayment or ridge vents, to protect against weather.

When properly installed, roof shingles can last for many years, providing property owners with an attractive and functional roofing option. They are popular among residential and commercial applications, providing excellent protection from the elements while creating an aesthetically pleasing look.

What is a Roofing Square?

Shingles are a type of roofing material comprised of overlapping pieces of the same material, such as wood, asphalt, or composite materials. A roof square is the unit of measurement used by roofing industry professionals to calculate the amount of material needed for a project. One roofing square is equivalent to 100 square feet and is typically calculated by measuring 10-foot sections across the length and width of the roof. When estimating square feet, contractors often use a single square to refer to an area equal to 100 square feet, which helps simplify the calculation of material needed for a job.

The visible height of each roofing shingle is referred to as its “exposure,” while the thickness is known as the “gauge.” These numbers will detirmine how many shingles go into each roofing square, but the manufactures will have each square of pre portioned for use.

The number of roofing shingles and bundles per square can vary depending on the roofing materials being used. Asphalt shingles, like Atlas Pinnacle, will always be three bundles, some other asphalt manufacturers will be four bundles per roofing square. while synthetic roofs, like F-Wave will have six bundles. Either way, they will always add up to 100 square foot of finished product for one square of roofing.


Who Uses Roofing Squares?

The roofing square size unit of measurement is used by contractors, architects, and other professionals in the roofing and construction industries. It is often used to accurately calculate material for roof planes to estimate the cost. This measurement is particularly useful for roofing installation because it helps determine how many squares is necessary to cover a roof area. By providing an easy way to calculate the amount of material required, roofing squares help save time and money on large-scale projects. They help ensure that the right product is chosen for the roof installation. The size of a square can also be used to determine the correct amount of materials and labor associated with a project. These are important factors for any contractor or homeowner when they have to determine the number when ordering materials.

What is a Bundle of Shingles?

A bundle of shingles typically contains 20-33 individual pieces, depending on the size and type of product being used. Each shingle is designed to overlap with its neighbor, creating a solid barrier that helps keep moisture out. The overlapping feature of shingles helps prevent wind damage by creating an interlocking roof design. In addition to providing protection and a finished look, bundles of shingles are also used to get the square footage needed for a job. By knowing each manufacturers coverage and applying that to the roof’s area, a contractor or homeowner can figure out how many bundles of shingles will be needed for a roof replacement.

How Many Square Feet is the Average House Roof?

The average size for a house roof is around 1,700 to 2,100 square foot. This number can vary depending on the style and size of the roof. how many square of shingles will it take a professional roofing contractor to cover an area this large? A Square covers 100 square foot, so you just devide the square footage of the roof by 100 to determine how many roofing squares will be needed. With proper planning and measurements, homeowners and contractors can figure out how much roofing material they need for the roof surface they are working on.

How Do I Measure My Roof’s Square Footage?

Calculating the roof’s total square footage is a relatively straightforward process, and it can be done using either linear or area measurements. With linear measurements, you must measure the length and width of each side of your roof (on the angle), then multiply those numbers together. This will give you the total surface area. For example, if one side measures 15 feet by 20 feet, then the square footage of that side would be 300 (15 x 20 = 300). To get the total square footage, you need to measure all four sides and add them together with a waste factor to account for shingles that need to be cut.

For area measurements, you need to break your roof down into individual sections and calculate each separately. Measure each length and width of every section, then multiply those numbers together. The total square footage of your roof will be the sum of all sections, so ensure to include any overhangs or protrusions in your measurements.

How To Calculate The Number of Shingle Bundles for Your Home

Getting the number of shingles needed for your gable roof is important so you can stick with your budget and minimize shingle wastage. Here’s the smart way to do it:

1. Calculate your roof’s total square footage.

Calculating the total square footage of your roof is easy. First, you need to measure each side of your roof in feet. This includes any overhangs or protrusions that extend beyond the roof’s edge. Once you have your measurements, multiply each side to get your area’s square footage. For example, if one side measures 15 feet by 20 feet, then the square footage of that side would be 300 (15 x 20 = 300). To get the total square footage, you need to measure all four sides and add them together.

2. Determine the number of roofing squares on the roof.

In order to accurately calculate the number of roofing squares on your roof, you need to grab a tape measure and check the roof area of each side in feet. Once you have these measurements, divide them by 100 to get the number of roofing squares on that side. For example, if one side measures 15 feet by 20 feet, then there would be 1.5 roofing squares on that side (15/100 = 0.15; 20/100 = 0.2; 0.15 + 0.2 = 0.35; 0.35 x 2 ( because there are two planes to each gable roof) = 1.5 roofing squares). Once you have the roofing squares for each side, add them to get the total number of roofing squares on your roof.

3. Measure the pitch of the roofing squares

Measuring the roof pitch involves finding the ratio between its rise and run or the vertical and horizontal measurements on a slanted surface. To do this, you will need to measure the roof’s height (rise) and length (run) in inches. Then, divide the height by the length and multiply by 12 to determine the pitch. For example, if one side of your roof measures 10 inches (rise) by 20 inches (run), then you would divide 10 by 20 and multiply it by 12 to get a pitch of 6/12 (10/20 = 0.5; 0.5 x 12 = 6). The higher the pitch number, the steeper your roof will be. You can use a two foot level and a tape measure to figure this out on your own roof.

4. Calculate the number of shingle bundles your roof needs

Once you have all the measurements for your roof, including its total square footage and the number of roofing squares, you can use that information to calculate how many shingle bundles are needed. Generally, one Square of shingles covers 100 square feet. Therefore, if your roof is 2,000 square feet in size, you would need 20 Square of roofing (2,000/100 = 20).

Finally, keep in mind that you will also need to purchase special shingles for starter strips and ridge caps, as these are not included in each bundle. These are specialty products that cannot be made out of normal field shingles. With proper planning and knowledge, you should be able to accurately calculate the total number of shingle bundles your roof needs.

How Much Does A Square of Roofing Shingles Cost?

The cost of a square of roofing shingles can vary widely based on the type and quality of the shingle chosen. Architectural shingles can range from $400 to over $500 per square. With labor and other materials factored in, the total cost of a roofing project can be pretty expensive, so it’s essential to research different shingle options before making a final decision. The best way to determine the cost, of course is to call us for a free estimate.

How to Account for Roofing Waste

Roofing waste is the amount of material lost during a roofing project due to incorrect cutting, overlap coverage requirements, or other factors. Buy 5-10% more shingles than what is calculated for your roof size to cover any potential wastage and still have enough material to complete the job. For example, if your roof requires 20 bundles of roofing, it’s wise to buy an extra two or three roof square just in case. This will ensure that you don’t run into unexpected problems during the installation process and won’t be forced to end the project due to inadequate material prematurely.


Installing a new roof is a big project, so it is vital to ensure you have the right amount of materials for the job. By accurately measuring your roof size, calculating the number of shingle bundles needed, selecting the correct type for the climate, understanding typical costs per square, and accounting for potential shingle wastage, you can plan a successful roofing project and avoid any costly mistakes. The good news is, with Magnum Roofing, you don’t have to worry about all these calculations and stress about whether you are ordering the right materials. We at Magnum Roofing and Construction can do all that for you. You can just sit back and relax while we take care of the whole process – from measuring, planning, ordering the materials, and installing a reliable and long-lasting roof. With Magnum Roofing, your roof will be well-protected for years to come.