Calculating Roof Shingles Needed

Shingle calculator estimates the total installation cost on a gable hip roof.

Calculating roof shingles needed.

Our calculator will help you estimate the amount of roofing shingles needed for your project plus the cost of materials and accessories. Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate. For example you may need to pay double the cost in asphalt shingles if your roof has a 12 12 pitch a rise of 12 inches 30 cm per 1 foot 0 30 m as opposed to a 4 12 pitch. Once you have these measurements you will need to calculate the area of the roof and then you can see how many shingles you will need.

To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares. At this point you will also need to estimate or measure the overhang if you have one. The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. 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.

Next you will need to use a roofing materials calculator. With an online roofing calculator you will usually be able to drill down a bit deeper in order to see a fine grained cost breakout on a sq ft basis. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.

This overhand measurement will need to be added to the measurement of the building. To accurately calculate the area of your roof you must first determine its slope or pitch. Average roofing shingles prices range between 3 19 and 5 12 per sq. Materials with all other necessary accessories 1 layer tear off labor dump fees and permits.

The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area.