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Metal Roof Gutter - Square Gutter Profile: The Comprehensive Guide

Updated: Jul 26, 2023

A picture of two roofers installing a new Colorbond roof and Square gutter

When it comes to roofing projects, choosing the right gutter profile is essential for both aesthetics and functionality. In this blog post, we'll be focusing on one specific gutter profile: the Square Gutter. This versatile and popular gutter profile goes by various names, depending on the manufacturer. To help you make an informed decision, we'll explore the ins and outs of:

What is Square Gutter

This is a photo of 2 lengths of Stramit Square gutter. The colorbond colour is called Surfmist
Stramit Square Gutter

A Square Gutter is a type of roof gutter designed with a square or rectangular shape. This distinctive design allows it to hold a higher volume of water compared to other gutter profiles. Some examples of Square Gutter products include Lysaght's Trimline and Sheerline gutters and Stramit's square gutters. Square Gutters can be made from various materials such as Colorbond, steel, aluminum, and copper, each with its own set of benefits and drawbacks.

Square Gutter Profile uses

  1. Commercial Buildings: Square Gutters are commonly used for commercial buildings, where their high water capacity and sleek design complement the architectural style.

  2. Industrial Buildings: Their durability and functionality make them a suitable choice for industrial facilities.

  3. Domestic Roof rainwater catchment and management: Square Gutters are also suitable for residential applications, offering a modern look while effectively managing rainwater.

  4. Sheds: They're an ideal choice for sheds, providing effective rainwater management and a clean, uncluttered appearance.

  5. Agricultural use: Square Gutters can be used in agricultural settings for collecting rainwater, a valuable resource for irrigation and livestock.

  6. Garden bed runners: A creative application for Square Gutters is using them as garden bed runners along a fence, perfect for growing small fruit and vegetables like strawberries.

What are the limitations of a Square Gutter?

While Square Gutters have many benefits, they do have certain limitations. One notable drawback is the lack of accessories that make installation easier, such as Quad gutter’s Cast Corners. Additionally, other gutter profiles like D-mould may be more suitable for specific domestic applications due to their design and ease of installation.

Corrugated roofing panels are available in various materials and BMTs (base metal thicknesses), so we've omitted a comprehensive list of specifications and minimum standards here. We advise enlisting a certified roofing expert for installation purposes. Our curated list features the top 5 local roofers, vetted through our rigorous Screening & Selection Criteria.

Pros and Cons


  1. Aesthetically pleasing when paired with a Lysaght Trimdek or Klip Lok Roof.

  2. Higher fronts hide the ribs of larger profile roof sheets above.

  3. Quick to install.

  4. Can be ordered with overflow slots machined into the face.

  5. Higher water capacity than other gutter profiles, such as Half Round Gutter and Quad Gutter.

  6. Available in Australian-made Colorbond Steel.


  1. Requires a licensed tradesman to install.

  2. Corners can be difficult to cut and join.

  3. Lower water capacity than some other profiles.

  4. Lack of ease of installation accessories.


In conclusion, Square Gutter offers a sleek and modern design, making them a popular choice for various applications, including commercial, industrial, and residential buildings. However, they do have certain limitations, such as the lack of installation accessories and suitability for specific applications. It's essential to carefully consider the pros and cons of Square Gutters to make the best decision for your project.

For more information and to compare alternative product options, visit our Buyer's Guide. This valuable resource will help you make an informed decision and select the perfect gutter profile for your roofing project. Don't hesitate to reach out to a professional for personalized advice and assistance in choosing the right gutter system. Happy roofing!

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