How to Calculate a Roofing Square – Before beginning, make sure you can safely access your roof—if you can’t, contact a roofing professional for help. Grab your measuring tape, level, pen and paper, roof safety equipment, and your ladder. With these in hand, you can measure your roof in five simple steps.

Determine the number of planes. Your roof is made up of planes, If you have a flat roof, it has one plane. If you have a simple gable roof, it has two planes. The more architectural details your roof has, the more planes you will have to measure. Measure each plane, Find the length and width of each plane. Then, multiply those two numbers together to find the square footage of that plane. For example, a 35 ft. X 36 ft. plane = 1260 sq. ft. Find the total of all the planes, Add the square footage for each roof plane into one total.1,260 sq. ft. + 1,260 sq. ft. = 2,520 sq. ft. Divide to find the squares. To find how many squares are on your roof, divide the total square footage of all your planes by 100. In our example, the total was 25.2 squares — 2,520 sq. ft. divided by 100. Remember the roof slope. Roof slope indicates how steep your roof is and may increase the number of squares of materials you need. Roof slope is calculated by determining how many inches a roof rises vertically for every 12 inches it extends horizontally. For example, if that vertical rise is 4 inches, the slope is 4:12.

You can use an online shingle calculator or roof slope calculator to help run the calculations. Once you know the total number of squares you want to cover, consider adding up to 10% in overage to account for error and installation. Pro tip: don’t rely on your home’s square footage to determine roof size.

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#### How do I calculate the square footage of my roof?

Calculating the Area (True) – If you want to get the exact area measurement for your roof, you can follow these steps:

Once you have your roof’s pitch, divide the number by 12. (For example, if your roof’s pitch is 4 in 12, you would divide 4 by 12. This would yield 1/3.) Next, square your result. (If your number is 1/3, squared would yield 1/9.) After that, add 1 to your number. (1/9 + 1 = 10/9.) Next, figure out the square root of your new number. (The square root of 10/9 is 1.05.) Next, use your measuring tape to measure the length of your house. (Be sure to include overhangs.) After that, measure the width of your house. (Be sure to include overhangs.) Multiply your house length by your house width to get the area. (For example, 40 feet x 30 feet = 1,200 square feet.) Next, multiply the area by your roof’s pitch. (1,200 x 1.05 = 1,260 square feet.) To allow for hips, ridges, and waste, add 10% of your final number for a gable roof and 17% of your final number for a cottage roof. (Your total number would be either 1,386 or 1,474 square feet.)

: How to Calculate Roof Area

#### How do you Measure the size of a roof?

Step 1: How to Calculate Your Roof Square Footage – First, measure the length and width of each surface on the roof, then multiply these values to get the square footage of that surface. Make sure to document the number of chimneys, skylights or other obstructions and include dormers in your measurements.

### Can I measure my roof from Google?

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.

### What measurement do roofers use?

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 re-shingling 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 mis-measurement 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:
- High-1.36
- Medium-1.185
- Low-1.07

- Congratulations! You now know how much roofing material you need!

## How many squares are in a 1200 square foot 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 plastic-wrapped bundles designed to be light enough for a person to carry, so heavier shingles require more bundles per square. Asphalt three-tab 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 three-bedroom home can vary depending on the size of additional rooms, with an average of 1,200-1,300 square feet. This is equivalent to 110-120 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 30-year shingle and a 50-year one is how long the product is guaranteed to last, In other words, 30-year architectural shingles are covered by the manufacturer from any unforeseen defects that could occur once the shingles are installed.

### How big is a roof on a 1000 square foot house?

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 standard-sized shingles (three-tab 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 standard-sized 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 3-tab 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 3-tab 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 3-tab standard size shingles (12″×36″) to cover roof of 1000 square feet house.

Thus, there are 39 bundles of standard size 3-tab 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 3-tab standard-sized 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

### What is 1 square of a roof?

One roofing square, or square of roofing shingles, is the amount of material needed to cover 100 square feet of roof area. The term is used by contractors, manufacturers, and suppliers as short hand to describe a roof’s size. For example, a 1,800 square foot roof is 18 square.

## How big is a roof on a 1500 sq ft house?

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 standard-sized shingles (three-tab 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 standard-sized 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 3-tab 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 3-tab 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 3-tab standard size shingles (12″×36″) to cover roof of 1500 square feet house.

Thus, there are 57 bundles of standard size 3-tab 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 3-tab standard-sized 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

#### What is the average roof square footage?

How Roofing Materials Are Sold – Most roofing is sold by the “square,” enough to cover 100 square feet of roof area. Our sample house — a typical two-story, 2,300-square-foot house with a medium-pitch roof — has a roof area of about 1,500 square feet. Double that if the house is only one story. Note: All costs are approximate.

Painting concrete surfaces requires more skill, tools, and time than throwing a coat on drywall. Here’s how to do it right. Choosing the wrong type of paint finish could mean a do-over that costs twice as much. Durability is key for kitchen remodeling, but it doesn’t have to cost a lot.

## What is not counted in square footage of a home?

What is not included in a home’s square footage? – All unfinished areas in the home are not included in the home’s square footage. These typically include the following:

Garage Attic Rooms with a sloping ceiling Unfinished basement Separate storage area Pool House Guesthouse Detached in-law quarters

#### How many squares are in a 2400 square foot roof?

What is a “Roofing Square”? – Roof surfaces are measured in “squares”. 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). Get your FREE aerial roof report! Keep the report on hand for future conversations with roofers or when reviewing estimates for your next roof replacement or repair,

## How many sq ft is the roof on a 1800 sq ft house?

If you were stunned when your roofer quoted you for a 3200 square foot roof for your 1800 square foot house, here’s why: 1) Homes usually have two different square footages listed on a realtor’s listing sheet or the tax appraiser’s property records. One is the conditioned (heated and cooled) living area—which is what most homeowners think of as the square footage of their home—and the other is the total area under roof.

A typical home that the owners know as being 1800 square feet may also have a 450 square foot two-car garage, plus front and back porches that total another 300 square feet, for a total of 2500 square feet under roof.2) But that’s just the beginning. That 1800 square foot house typically has a two foot roof overhang that adds an average of 250 square feet of roof, for a total of 2750 square feet.3) Then the pitch of the roof adds more area.

A 6/12 pitch roof (6 inches of rise for every 12 inches of run) has approximately 117 square feet of roof over every 100 square feet of floor below. In this case, the pitch would tack on an additional 450 square feet. That makes a total of 32 squares of roof for an “1800 square foot” house.4) Roofers calculate roof area in “squares,” with a square being 100 square feet of roof area. • Why is granule loss a problem for an asphalt shingle roof? • What are the mistakes to avoid when doing attic improvements? • What causes roof shingles to curl up at corners? • What causes shingles to buckle along a line on the roof? • What causes leaks at a fake roof dormer? • What causes a sagging roof ridge line? • What causes bubble-like blisters in a built-up and gravel roof? • Why does it cost so much more to replace a steep roof than a low slope roof? • What is “ponding” on a flat roof? • Is an attic required to have a light by the building code? • How can I inspect my roof for hurricane damage? • Why is premature curl of roof shingles a problem? • How can I tell if a roof has more than one layer of shingles? • What are the common problems with attic insulation? • What is the life expectancy of an asbestos cement shingle roof? • What’s the average lifespan of a roof? • Why is it a mistake to replace a roof and not replace its flashings? • Why is there no attic access hatch in the house? • What is the building code requirement for an attic access hatch, scuttle, or door? • Does a roof with multiple layers of shingles last longer? • What can I do to prevent roof leaks? • Are roof trusses better than roof rafters (stick framing)? • Why is a popped nail in a shingle roof a problem? How do I fix it? • What are the most common problems with wood roof trusses? • What causes a lump or dip in the roof? • If my roof is not leaking, why does it need to be replaced? • How can I be sure my roofing contractor got a permit? • How many layers of roofing are allowed on a home? • What are the dark lines running parallel to shingles on my roof? • Can metal roofing be used on a low slope/pitch roof? • How can I make my roof last longer? • What are the warning signs of a dangerous attic pull-down ladder? • How can I find out the age of a roof? • Should I buy a house that needs a new roof? • Should I buy a house with an old roof? • What are those metal boxes on the roof? • What does “lack of tab adhesion” in an asphalt shingle roof mean? • Why do roof edges start leaking? • Why do my dormer windows leak? • Do home inspectors go on the roof? Do they get in the attic? • Should I put gutters on the house? • How much of a roof truss can I cut out to make a storage platform in the attic? • What’s the difference between an “architectural” and a regular shingle roof? • What does a home inspector look for when examining a roof? • Do stains on the ceiling mean the roof is leaking? • How can I tell if the house needs a new roof? • Why does my homeowner’s insurance want a roof inspection? • What are the hazards to avoid when going into an attic? Visit our ROOF AND ATTIC page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.