Which Type Of Roof Truss Is Best For Your Project?

Choosing the right type of roof truss is a crucial step in any construction project, whether it's for a residential home, commercial property, or industrial building. Timber roof trusses offer strength, versatility, and sustainability, making them a preferred choice for many builders and property owners. However, the type of truss you select will impact the building’s structural integrity, aesthetic appeal, and long-term performance.

There are two primary types of timber roof trusses to consider: gable trusses and flat trusses. Understanding their features and applications can help you determine the best option for your specific project.

Before deciding between a gable truss or a flat truss, it’s important to assess the following:



• Building Design & Architectural Style – Some trusses complement traditional structures, while others suit modern or industrial designs.
• Load-Bearing Requirements – The truss must support the roof covering, insulation, and any additional loads, such as solar panels or HVAC units.
• Aesthetic Considerations – The shape of the truss influences the overall look of the building, both inside and out.
• Budget & Material Efficiency – The amount of timber required and the complexity of fabrication can impact costs.

Best for

Residential homes, commercial buildings, and structures needing a pitched roof.



Features

A triangular design that provides excellent support and drainage.

• Natural water drainage – The pitched design helps prevent water accumulation, reducing the risk of leaks and structural damage.
• Increased ventilation – The roof’s peak allows for better air circulation, which can help regulate indoor temperatures.
• Potential for attic space – The steep slope can create room for storage or future expansion, making it a practical choice for homes and businesses.
• Durability in various climates – Works well in regions with high rainfall where proper runoff is essential.
  

A gable truss is ideal for buildings that require a traditional, sloped roof with strong, reliable support. It is a versatile option for a wide range of projects, from family homes to commercial spaces, providing both functionality and visual appeal.

Best for

Modern homes, industrial buildings, and structures with a minimalistic design.

Features

A horizontal, level roof structure that maximises usable space.

• Sleek, contemporary design – Flat roofs are often associated with modern architecture, offering a clean, streamlined appearance.
• Maximises interior space – With no pitch, the design allows for higher ceilings and an open-plan layout, making it ideal for warehouses, offices, and retail stores.
• Supports rooftop installations – Provides a stable surface for solar panels, HVAC systems, or rooftop gardens, making it a practical choice for energy-efficient buildings.
• Cost-effective – Generally requires less material than a gable truss, which may lead to savings on timber and labour costs.
  

A flat truss is best suited for buildings that require a low-profile roof design with efficient space usage. It is often used in commercial and industrial structures, as well as contemporary residential projects that prioritise functionality and modern aesthetics.

The right choice between gable and flat trusses depends on the specific needs of the building:

• For a classic pitched roof with strong drainage and attic space, a gable truss may be the better fit.
• For a modern, minimalistic structure with rooftop functionality, a flat truss is likely the best choice.

Each truss type serves a unique purpose, and considering structural, aesthetic, and budgetary factors will help guide the decision-making process.

If you're in the process of planning a construction project and need high-quality timber roof trusses on the Sunshine Coast, explore the available options to find the best fit for your needs. Contact us at Leach Trusses to learn more about precision-manufactured timber trusses designed for strength, functionality, and long-lasting performance.