To calculate your roof area, simply multiply your roof length by your roof slope height, and multiply this by two. This should give you the total area of your roof, not accounting for a chimney or other sections of your roof not covered by tiles.
Contents
 0.1 How do I calculate the size of my roof?
 0.2 How is roof area calculated in Australia?
 0.3 How many square is a 10×10 roof?
 1 How many square feet is a roof?
 2 How many squares is a 1000 sq ft roof?
 3 How much is 20 square on a roof?
 4 How many squares is a 2000 sq ft roof?
 5 What is projected roof area?
 6 How do you calculate the area of a roof truss?
 7 How big is a 30 square roof?
 8 How many squares is a 2000 sq ft roof?
 9 How many square feet is a 12×12 roof?
How do I calculate the size of my roof?
How to Calculate Total Square Footage of Your Roof – To find your roof’s total square footage:
 Measure the length and width of each plane on the roof (including dormers) then multiply length times width.
 Add the square footage of each of the planes together.
Example #1: Shed Roof with One Roof Plane For example, this shed roof has one roof plane. Shed Roof with One Roof Plane Multiply length (A) times width (B): A x B = 40′ x 30′ = 1200 sq. ft. for the total square footage of the roof. Example #2: Gable Roof with Two Roof Planes This gable roof has two planes. Gable Roof with Two Roof Planes So to derive the total square footage of the roof, you would:
 Multiply length (A) times width (B) and length (A) times width (C) to get the square footage for each plane.
 Add the two planes together.
For example:
 Plane 1 (A x B): 40′ x 30′ = 1200 sq. ft.
 Plane 2 (A x C): 40′ x 30′ = 1200 sq. ft.
 Plane 1 + Plane 2 = 2400 sq. ft. for the total square footage of the roof.
Ready to get an estimate? Find an independent roofing contractor in the Owens Corning Roofing Contractor Network near you.
How is roof area calculated in Australia?
If your house is rectangular, all you need to do is multiply the length and width of the building. If the shape of your house is more complex, simply enter the total area (after measuring the exterior dimensions) into the appropriate box.
How do you calculate the area of a gable roof?
On a simple hip or gable roof, multiplying the eave to ridge length by eave length will give the area to be multiplied by pitch factor.
How many square is a 10×10 roof?
A roofing square is a 10×10 area that’s equal to 100 square feet of roof surface.
How many square feet is a roof?
How To Measure A Roof With Roofing Squares So you’ve decided to, you’ve called the contractor and all seems well until the contractor comes down and you hear a term you’re not familiar with, ” roofing square” “What?” you ask yourself, wondering what exactly the person you hired just said to you, did they mean a square foot, a panel, something else entirely? Don’t worry, you’re not alone. A roofing square is a measurement, but it has nothing to do with square feet, meters, yards, or miles. A roofing square is commonly used by roofing companies and is roughly equivalent to 100 square feet. This measurement does not change whether it is a square of shingles or a square of tarp. The roofing square size form of measurement is only used within the roofing and construction industries. Though you can use the measurement yourself to try to calculate the cost of reshingling your homes, such tasks are usually best left to an, Nonetheless, even if you have confidence in your ability to determine the correct amount of materials needed, there are still a few steps you should take before you try.
All right so there are a few things you should do before you even attempt to measure your roof up. Make sure you’re secure – Before you start trying to take any sort of measurement it is critical that you find a ladder that is good repair, and make sure it is secure so there is no danger of you falling off on your way up to the roof.
Once on the roof, it is critical that you are wearing shoes with proper traction such as work boots. Measure twice, order once – One of the biggest mistakes people make when attempting to measure, well, anything really, is that they don’t measure carefully.
This is especially important in the case of ordering roofing materials, where mismeasurement can greatly increase your costs. Calculate the square footage – Once you’ve managed to measure the length and width of your roof without falling off, all that’s left to do before you can calculate the roofing square value you need is to determine the square footage of your roof.
To do this simply multiply the length by the width, and voila, you’ve got the square footage of your roof! Calculate the roofing square to square feet value– This is perhaps the simplest part of the process simple divide the square footage by 100, for example, if you had 1000 square feet of roofing needed, you would need ten squares of roofing material.
 Take a look at your roof, and estimate the pitch at low medium or high.
 Climb your roof, bringing a two foot level with you. Place the level at the peak of your roof, make sure the bubble is in the center and then take your tape measure and measure the distance between the end of the level and your roof.
 Now using your earlier estimate multiply your measurement using the numbers that follow:
 High1.36
 Medium1.185
 Low1.07
 Congratulations! You now know how much roofing material you need!
How many squares is a 1000 sq ft roof?
How many bundles of shingles do i need for 1000 square feet house – As a rule of thumb, there are 3 bundles of shingles required to a square or 100 sq ft of roof surface area. There are also 29 standardsized shingles (threetab strip shingles) measuring 12 inches by 36 inches in each bundle.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. However, shingles are packaged in a way that they are light enough for the average person to carry around. When shingles come three bundles to the square, there are 29 standardsized shingles (12 in. by 36 in.) in each bundle.
How many bundles of shingles do i need for 1000 square feet house : as per general rule of thumb, you will need 3 bundles of standard size 3tab shingles (measuring 12 inches by 36 inches) for a “square” roof. Thus, for a 1000 square foot house or 13 squares, you would need 39 bundles of shingles (13 square x 3 bundles per square = 39 bundles).
 For a 1000 square foot house foot print, you will need approximately 13 squares or 39 bundles or 1130 pieces of standard size 3tab shingles (13×3 = 39 bundles) to cover roof.
 Thus, to cover roof of a 1000 square foot house, you would need 39 bundles of shingles.
 Thus, it will take 39 bundles of 3tab standard size shingles (12″×36″) to cover roof of 1000 square feet house.
Thus, there are 39 bundles of standard size 3tab shingles you will need to cover roof of 1000 square feet house. Note : Be aware, the only way to get a 100 percent accurate measurement is to have a local roofing contractor come out to professionally measure your shed roof and give you a quote.
 However, I explained about to get a rough measurement of your shed square footage and shingles quantity.
 Conclusion : For a 1000 square foot house, you will need approximately 13 squares or 39 bundles or 1130 pieces of 3tab standardsized shingles (12 inch by 36 inch) when overhangs is 1 feet and roof slope is 4/12.
: How many bundles of shingles do i need for a 1000 square foot house
How many square is a 12×12 roof?
The average size of 12×12 shed roof is 3 squares, which typically requires 9 bundles of threetab asphalt shingles or any other starter strips.
How much is 20 square on a roof?
To put it simply, the term ‘roofing square’ refers to 100 square feet of roof. For instance, a 2,000squarefoot roof equals roughly 20 roofing squares.
How do you calculate roofing linear meters?
How do you calculate a linear metre? If you know the square metres of an area and need to know the length, you can get the length in linear metres by dividing the area by the width.
How many squares is a 2000 sq ft roof?
How many shingles do I need to protect my roof? – T he surface area of your roof will affect the number of bundles or squares you need. A 2,000 square foot roof requires 20 squares or 60 bundles. A roofing square is equal to 100 square feet of the roof,
 To determine the number of squares on the gable roof example in this post, divide its total of 2400 square feet by 100 (2400 ÷ 100 = 24).
 This means you would need 24 squares of shingles to cover that roof.
 One square is equal to 100 square feet,
 Examples where the unit is used are roofing shingles, metal roofing, vinyl siding, and fibercement siding products.
Some home builders use squares as a unit in floor plans to customers. A square of shingles is the quantity needed to cover 100 sq. ft. of roof, Shingles are packaged in paper or plasticwrapped bundles designed to be light enough for a person to carry, so heavier shingles require more bundles per square. Asphalt threetab shingles cost around $1 to $2 per square foot, Price of Roofing Shingles Per Square Foot.
Roof Area  Cost of Shingles 

750 square feet  $700 – $800 
1,000 square feet  $910 – $1,100 
1,500 square feet  $1,400 – $1,600 
The size of a threebedroom home can vary depending on the size of additional rooms, with an average of 1,2001,300 square feet. This is equivalent to 110120 square metres, There are 12 roofing squares in 1200 square feet. The surface of roofs is basically measured in squares.
 One square is equal to 100 square feet of the roof.
 To calculate the number of squares of the roof, divide the total square feet by 100.
 With that said, on average, most roofing companies will charge somewhere between $3.50 and $5.50 per square foot, or $350 to $550 per square (100 square feet) to install or replace an asphalt shingle roof.
By saying this, you might already realize that the difference between a 30year shingle and a 50year one is how long the product is guaranteed to last, In other words, 30year architectural shingles are covered by the manufacturer from any unforeseen defects that could occur once the shingles are installed.
What is projected roof area?
They define it as ‘ the area of the uppermost surface of the building which covers the Gross Floor Area, as measured when projected onto a flat, horizontal surface (i.e. as seen in Roof Plan view).
How do you calculate the area of a roof truss?
Rafter length from rise – After you calculate the roof span, next you’ll have to determine the rise which is based on the roofing material you choose and other design options. This will also affect the length of the rafters. Now imagine the entire truss as a pair of back to back right angles triangles.
 Equation:a2 + b2 = c2 A = span B = rise C = rafter length Already having the rise will make it easy to determine the rafter length by loading the numbers into the equation chart.
 For example, a roof with a span of 20 ft and a rise of 7 feet needs rafters that are the square root of 400 + 49 = 21.2 feet.
This does not include the extra length required for the overhangs.
How many square feet is a 10×12 roof?
How do you calculate the square footage of 10×12 shed roof – Figure out the area of the shed plus the overhangs: – determine the squre footage of the shed foot print by measuring the length and width of the shed including the overhangs. Assume the overhangs are 1 feet both sides eves and rake then you have 2 feet extra, so each dimension for 10×12 shed roof with overhangs is around 12’×14′ = 168 square footage.
 Find the roof pitch or slope : the roof pitch is the amount of slope.
 The slope is described by the “rise” in inches or how far up it goes over the “run” in inches or how far horizontal it goes.
 We will use a 6 in 12 pitch.
 For every 6 inches the roof goes up to the peak it goes 12 inches horizontally.
Calculate the square of rise and run and sum it: square of rise 6×6=36, square of run = 12×12 = 144, add both 36 +144 = 180. Find the square root of the sum : square root of 180 = 13.417 Sum divide by 12 to get the product : square root of 180 = 13.417 is divided by 12 as 13.417 ÷ 12 = 1.118, hence 1.118 equals the product Multiply the product by the flat roof area and divide by 100 : our 10×12 shed square footage with overhangs is 168 sq ft, so 1.118 x 168 = 188 square feet, 188 / 100 = 1.88 squares.
What is a 12×12 roof?
A 12/12 roof pitch can also be expressed as 12 over 12 and when you’re talking to a roofer, this is the most common way you’ll hear it explained because it’s easy to say in conversation. Another way to express a 12/12 pitch is “12 and 12.” In this pitch, the first twelve is your roof’s rise and the second twelve is the roof’s run.
What is the standard size of a roof?
For residential building standard size of roof height is given as 10 feet. And for commercial building it is given as 10 to 12 feet.
How big is a 30 square roof?
Roofing square explained – what is a square in roofing ? – A roofing square is a measurement that covers 10 by 10 feet, totaling 100 square feet on a roof. Meaning if a roof is 30 squares, the total square footage would amount to 3,000 sq. ft. The more squares a roof covers, the more money a customer will have to pay for replacing their roof.
 It’s no surprise that roofing contractors use a square to estimate the size of a roof, as it’s straightforward and fairly simple to work with.
 A 100foot square measurement makes it easier to calculate the number of shingles or other roofing materials necessary to cover a rooftop.
 In addition to replacing roofs, it can help lay out stairs and rafter connections.
When discussing the size and scope of a roofing project with a contractor, standardized roofing square measurements are frequently mentioned. It’s often easier to use this unit than total square footage, as it maintains a constant unit of measurement.

 Additionally, it helps with comparing quotes from different companies, as knowing the square size can help with making the right decision.

It’s important to remember that roofing square s don’t have to be literal squares. Instead, a roof square is just how much material you’ll need to cover a roof area for replacement. Of course, precise measurements and calculations can be streamlined with software platforms like Roofr, which also autocalculate material and labor costs from measurement reports and catalogs.

 How to use a roof square
 If you’re wondering how to use a roof square in measurement, it’s simple.

You can use roofing square s when estimating the roof’s pitch. In addition to measuring the angle of the roof, a speed square can guide your circular saw and help you measure the length and width of a roof. To begin measuring your roof, make sure you walk up to the roof’s peak.
 Then, orient the sketch to your current position so you can label the planes accurately.
 Next, lay out your measuring tape along the length and width of the plane.
 Once you have finished measuring the length and width, you can switch to measuring in square feet and write down your measurements.
 Roofing square foot costs Roofing costs are generally quoted on a square foot basis.
Each roofing square covers 100 square feet and includes labor and materials. Depending on factors like location, roof size, and material quality, labor costs can range anywhere from $150 to $300 per square foot. The square foot rate depends on things like the quality of the roofing material, the existing roof structure, and the location of the roof.
Roofing professionals charge by the square foot and may offer discounted prices when bargained with. Premium roofing products will, of course, increase pricing, but these premium products can be worth the extra investment. For example, slates cost more per square foot, but they’re more durable than standard shingles and can last up to a century.
Also, clients are often more inclined towards roofing companies with extended warranties. A warranty saves customers money in the long run, ensuring that their roof is protected against damage and leaks. Where can I use roofing square s? A roofing square is the best choice for measuring a steep roof, like a gambrel or mansard.
 A gable roof is relatively easy to measure, but a complex roof will require more precision and planning.
 The reason: complex roof designs require more shingles and detailed measurements.
 However, these designs often end up producing more waste.
 Roofing square s help reduce the amount of unused material from intricate roof designs.
You’ll also be spending less time and money (with significantly less waste) using roofing platforms like Roofr, which help you save on measurement report costs. Measuring roof pitch with roofing square s The term “pitch” is often referred to as the amount of rise a roof has per horizontal foot.
 For example, a 6:12 pitch indicates that the roof will rise six inches every twelve feet between the eave and peak.
 The Lshape of roofing square s is perfect for marking wide boards and for checking squareness.
 Moreover, it’s helpful when laying out stair stringers or rafters.
 The compact right triangle often has ruler increments printed on it, with a flange that can serve as a crosscutting fence.
It also has markings for the proper angles of a rafter and hip. Why professional roofers choose Roofr Roofr is a fast and accurate roof measurement software that produces roof reports in under 24 hours. Not only does our platform streamline the sales process, but it only costs as little as $15.

 Grow your businesses and stay ahead of the competition by streamlining the normally long roofing sales process, with estimates and quotes in minutes.

Simply enter the roof address you want to measure to retrieve a satellite image. Our platform will do the work for you, and you’ll receive a comprehensive report detailing total square count, amount of facets, predominant pitch, diagram overviews, and more. Want to increase efficiency in taking roof measurements? today! : Blog: What is a Roofing Square in Measurements?
Can Google Earth measure my roof?
When you want to start shopping around for quotes on a new metal roof, you face several big questions: How many square feet is your roof? How many peaks and valleys do you have? How do you even get up on the roof? Maybe, you’re a contractor and you went out to a home to you can provide a quote.
 You went there to measure a roof for metal or shingles but forgot to take a few critical measurements.
 You’re dreading driving back out there.
 The good news is there is a way to measure your roof in a safe and accurate way, all from the comfort of your home: use Google Earth.
 With just a few clicks, you can search for any address, get a bird’s eye view of your roof, and get the roofing measurements that you need.
At Western States Metal Roofing, we talk to hundreds of homeowners each month. The first question that we ask is, What’s the square footage of your metal roof ? This is the starting point for a quote and neither of us can proceed without it. Knowing the square footage allows us to give you an accurate quote.
How many squares is a 2000 sq ft roof?
How many shingles do I need to protect my roof? – The surface area of your roof will affect the number of bundles or squares you need. A 2,000 square foot roof requires 20 squares or 60 bundles. A roofing square is equal to 100 square feet of the roof,
To determine the number of squares on the gable roof example in this post, divide its total of 2400 square feet by 100 (2400 ÷ 100 = 24). This means you would need 24 squares of shingles to cover that roof. One square is equal to 100 square feet, Examples where the unit is used are roofing shingles, metal roofing, vinyl siding, and fibercement siding products.
Some home builders use squares as a unit in floor plans to customers. A square of shingles is the quantity needed to cover 100 sq. ft. of roof, Shingles are packaged in paper or plasticwrapped bundles designed to be light enough for a person to carry, so heavier shingles require more bundles per square. Asphalt threetab shingles cost around $1 to $2 per square foot, Price of Roofing Shingles Per Square Foot.
Roof Area  Cost of Shingles 

750 square feet  $700 – $800 
1,000 square feet  $910 – $1,100 
1,500 square feet  $1,400 – $1,600 
The size of a threebedroom home can vary depending on the size of additional rooms, with an average of 1,2001,300 square feet. This is equivalent to 110120 square metres, There are 12 roofing squares in 1200 square feet. The surface of roofs is basically measured in squares.
One square is equal to 100 square feet of the roof. To calculate the number of squares of the roof, divide the total square feet by 100. With that said, on average, most roofing companies will charge somewhere between $3.50 and $5.50 per square foot, or $350 to $550 per square (100 square feet) to install or replace an asphalt shingle roof.
By saying this, you might already realize that the difference between a 30year shingle and a 50year one is how long the product is guaranteed to last, In other words, 30year architectural shingles are covered by the manufacturer from any unforeseen defects that could occur once the shingles are installed.
How many square feet is a 12×12 roof?
How do you calculate the square footage of 12×12 shed roof – Figure out the area of the shed plus the overhangs: – determine the squre footage of the shed foot print by measuring the length and width of the shed including the overhangs. Assume the overhangs are 1 feet both sides eves and rake then you have 2 feet extra, so each dimension for 12×12 shed roof with overhangs is around 14’×14′ = 196 square footage.
Find the roof pitch or slope : the roof pitch is the amount of slope. The slope is described by the “rise” in inches or how far up it goes over the “run” in inches or how far horizontal it goes. We will use a 6 in 12 pitch. For every 6 inches the roof goes up to the peak it goes 12 inches horizontally.
Calculate the square of rise and run and sum it : square of rise 6×6=36, square of run = 12×12 = 144, add both 36 +144 = 180. Find the square root of the sum : square root of 180 = 13.417 Sum divide by 12 to get the product : square root of 180 = 13.417 is divided by 12 as 13.417 ÷ 12 = 1.118, hence 1.118 equals the product Multiply the product by the flat roof area and divide by 100 : our 12×12 shed square footage with overhangs is 196 sq ft, so 1.118 x 196 = 220 square feet, 220 / 100 = 2.2 squares.
How many squares is a 1500 square foot house for roof?
How many bundles of shingles do i need for 1500 square feet house – As a rule of thumb, there are 3 bundles of shingles required to a square or 100 sq ft of roof surface area. There are also 29 standardsized shingles (threetab strip shingles) measuring 12 inches by 36 inches in each bundle.
 A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
 However, shingles are packaged in a way that they are light enough for the average person to carry around.
 When shingles come three bundles to the square, there are 29 standardsized shingles (12 in.
 By 36 in.) in each bundle.
How many bundles of shingles do i need for 1500 square feet house: – as per general rule of thumb, you will need 3 bundles of standard size 3tab shingles (measuring 12 inches by 36 inches) for a “square” roof. Thus, for a 1500 square foot house or 19 squares, you would need 57 bundles of shingles (19 square x 3 bundles per square = 57 bundles).
 For a 1500 square foot house foot print, you will need approximately 19 squares or 57 bundles or 1653 pieces of standard size 3tab shingles (19×3 = 57 bundles) to cover roof.
 Thus, to cover roof of a 1500 square foot house, you would need 57 bundles of shingles.
 Thus, it will take 57 bundles of 3tab standard size shingles (12″×36″) to cover roof of 1500 square feet house.
Thus, there are 57 bundles of standard size 3tab shingles you will need to cover roof of 1500 square feet house. Note : Be aware, the only way to get a 100 percent accurate measurement is to have a local roofing contractor come out to professionally measure your shed roof and give you a quote.
 However, I explained about to get a rough measurement of your shed square footage and shingles quantity.
 Conclusion : For a 1500 square foot house, you will need approximately 19 squares or 57 bundles or 1653 pieces of 3tab standardsized shingles (12 inch by 36 inch) when overhangs is 1 feet and roof slope is 4/12.
: How many bundles of shingles do i need for a 1500 square foot house