How Do I Calculate The Roof Pitch Of My Shed Or House?

by | Apr 5, 2024 | Building and Construction, Designing Sheds, DIY Do It Yourself, Education, How to, Shed Building, shed engineering, Tips and Advice | 0 comments

Steel Shed Roof Pitch

At The ShedBlog, we’re passionate about ensuring your shed is equipped with the best-fit solutions.

What exactly is roof pitch? It’s the angle, measured in degrees, at which your shed’s roof surface tilts from the horizontal. But don’t worry about complex math equations! We’ve simplified the process for you.

We’re excited to share with you our innovative ShedBlog Online Roof Pitch Calculator that takes the guesswork out of determining your roof pitch. Our calculator does the rest, providing you with the precise angle for your steel shed roof.

How to Use the Shedblog Roofpitch Calculator

Using our roofpitch online calculator is as easy as pie. Just enter the RISE and RUN, and click on the “CALCULATE PITCH” button, and then then you’re set! Use the image below  as your guide.

roof pitch diagram


The RISE refers to the vertical measurement from the upper edge of your wall sheets to the peak of your roof.
The RUN represents the horizontal distance from your wall sheet to the center of the ridge on your gable roof. In the case of a Skillion roof, the RUN is equivalent to the roof’s span.
The SPAN denotes the horizontal measurement extending from one wall to another across your shed.
Theis ROOF PITCH is the steepness of a roof, expressed as the angle, in degrees.

So, why calclulate manually when you can get the roof pitch calculation instantly? Click on the button below to advantage of our user-friendly Roof Pitch Calculator today!

What is Roof Pitch

Roof pitch, though often overlooked, plays a crucial role in determining the overall functionality and aesthetics of a building’s roof. Whether you’re constructing a new home, planning a renovation, or simply curious about your current roof’s specifications, understanding how to calculate roof pitch is essential. In this comprehensive guide, we’ll delve into the fundamentals of roof pitch, its significance, and provide you with the knowledge and tools necessary to accurately determine it for your steel shed project.

Roof pitch refers to the steepness or slope of a roof. It is typically expressed as a ratio or degree, representing the vertical rise for every horizontal distance. For example, a roof with a pitch of 1:2 means that for every 2 metres of horizontal distance, the roof rises 1 metre vertically. The pitch is a critical aspect of roof design as it directly impacts several factors, including drainage efficiency, structural integrity, material selection, and even the architectural style of a building.

Why is Roof Pitch Important?

Understanding the roof pitch is vital for several reasons:

Drainage: The primary function of a roof is to shed water efficiently. A steeper pitch allows water to flow more rapidly, reducing the risk of water pooling and potential leaks.

Structural Integrity: Roof pitch affects the structural load distribution and the type of support system required. Higher pitches may necessitate additional bracing and support to withstand wind and snow loads.

Material Selection: Different roofing materials are suited to specific pitch ranges. For instance, asphalt shingles are commonly used on roofs with pitches ranging from 4:12 to 12:12, while metal roofing is more suitable for steeper pitches.

Aesthetics: Roof pitch contributes significantly to the overall appearance and architectural style of a building. Steeper pitches are often associated with traditional or historical designs, while lower pitches are characteristic of modern or contemporary architecture.

How is Roof Pitch Calculated?

Calculating roof pitch can be done using various methods, depending on the available information and the complexity of the roof structure. Here are two commonly used methods:

Using the “Rise” and “Run” Method: This method involves measuring the vertical rise and horizontal run of the roof to determine the pitch ratio. Start by measuring the vertical distance (rise) from the top of the roof to the bottom (eave). Next, measure the horizontal distance (run) from the edge of the roof to the point directly below the highest part of the roof. Divide the rise by the run to obtain the pitch ratio. For example, if the rise is 1 metre and the run is 2 metres the pitch ratio would be 1:2 or can also be expressed as 26.57 degrees.

Using a Pitch Gauge or Level: For a quick and simple estimation of roof pitch, a pitch gauge or level can be used. Place the pitch gauge or level on the roof surface and adjust it until the bubble is centred. The markings on the gauge or level will indicate the pitch angle in degrees, which can then be converted to a pitch ratio.


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  • Explore mezzanine floors for the home or shed here

Using Our ShedBlog Online Roof Pitch Calculator is Easier!

While manual calculations are effective, they can be time-consuming and prone to errors, especially for complex roof designs. That is why we’ve made the process easier for you with our ShedBlog Online Roof Pitch Calculator. By inputting the required measurements, our calculator can instantly generate the pitch ratio or angle for your roof.

You can find our Online Roof Pitch Calculator here: