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Roofing Square area

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). This means you would need 24 squares of shingles to cover that roof.

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.

Roofing square (or per square) is a common roofing terminology. It means “100 square feet.” It is used by contractors, suppliers, wholesalers, and manufacturers so that they have a common way to refer to 100 square feet of roofing material.

Steps to Measuring Roof Square Footage

  1. Prepare: For your safety, use a sturdy, reliable ladder and secure to your roof. Wear shoes (boots) with proper traction to avoid slipping.
  2. Measure: Use a tape measure to note the length and width of your roof, including dormers. Be careful walking around, so you don’t damage your roof.
  3. Calculate: Multiply the length by the width of each plane to determine square footage. Then add the results together for the total square footage of your roof.

How many bundles of shingles do I need for 1000 square feet?

A package of shingles is called a bundle. 3 bundles = 1 roofing square (98.4 sq. ft.)
 
It typically requires 3 bundles to cover one square, or 100 square feet. If one is using 3-tab, there are 27 shingles to a bundle, therefore 81 shingles to a square, therefore 810 shingle per 1000 square feet.
Satellite roof measurements

How many squares is a 2000 square foot home?

If your house area is 2000 square feet, the number of roofing square for the roof will be 20. In metric system, the house area will be approximately 186 square meters, because 1 meter is equal to 10.76 feet.

How much does it cost to shingle a 1000 sq ft roof?

Average Cost to Replace a Roof by Sky Roof Measure
House (& Roof**) by Square FootRe-Roofing Cost*
1,000 (1,054)$4,000 – $5,500
1,100 (1,160)$4,200 – $6,000
1,200 (1,265)$4,500 – $6,500
1,500 (1,581)$5,500 – $8,000

 

Blueprint takeoff

Roofing Square Calculator

If you’re replacing a roof, the first consideration needs to be the roof’s size so accurate material estimates can be made.

In the U.S., roofs are measured in square footage, and roofing contractors typically quote projects based on the size of the roof in squares. Consequently, gathering the size of the roof in squares and square footage is the first step.

Getting accurate roof measurements can be difficult but with our roofing calculator, you’ll be well prepared to take measurements of any roof. Whether you’re a contractor looking to train a new employee or a homeowner looking to do some renovations, you’ll find this guide helpful for any roofing project. If you need assistance in determining how much roofing you will need, Please feel free to call Sky Roof Measure at –  (315) 926-1777

What’s your roof slope?

slope roof

You will also need to know the slope of your deck. In order to determine this, measure the vertical rise of your deck in inches over a 12″ horizontal distance. If this rise is 4″, then your roof slope is 4 in 12.

Roof slopes are always expressed with the vertical rise mentioned first and the horizontal run (12″) mentioned second.

Roofing Calculator

With that as background, you are now ready to estimate how many shingles you will purchase for your roof project. This roof shingle calculator requires four basic inputs:

  • Roof length (measured in feet)
  • Roof width (measured in feet)
  • Roof pitch
  • Roof type (either gable or hip)

Using these four inputs, you will get several basic outputs:

  • Roof area (measured in sq ft)
  • Number of squares
  • Number of bundles
  • Approximate price (in dollars)

The estimate of a final price will depend, to a large degree, on the overall size of your home (i.e. sq footage). This makes sense, right? The bigger your roof area, the more shingles will be used to cover the footage of this area completely.

In addition, you will need to take into account the materials being used. If you are using standard asphalt shingles, your price will be lower than if you are using more expensive slate, metal or tile shingles. For most residential homes, asphalt shingles are the standard, but there are plenty of reasons to avoid using asphalt shingles as your material, such as if you are concerned about the waterproof coverage of your home.