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Types Of Roof Trusses

Roof trusses come in various designs, each suited to different building styles, loads, and spans. Choosing the right type depends on your roof pitch, span, and the purpose of the building.

• King Post Truss: Ideal for short spans and simple roof structures. Commonly used in small residential buildings.
  
  

• Queen Post Truss: Similar to the king post but suited for slightly longer spans. Offers good support for mid-sized roofs.
  
  

• Fink Truss: Very popular in modern housing. Recognisable by its ‘W’ shape and efficient for wide spans.
  
  

• Howe Truss: Often used in industrial buildings. Designed to handle heavy loads with added vertical and diagonal supports.
  
  

• Scissor Truss: Features a sloped bottom chord, perfect for cathedral ceilings and vaulted interiors.
  
  

• Attic Truss: Provides extra space within the roof for a small room or storage area—great for maximising roof volume.
  
  

• Mono Truss: Used for single-pitch roofs or extensions. Offers a clean, modern look.
  
  

• Gambrel Truss: Typically seen in barns or storage buildings. Allows for extra loft space.
  
  

All trusses can be built from timber or steel, and can be prefabricated off-site or constructed on-site, depending on your project requirements.

Why Are Roof Trusses Used?

Roof trusses are an essential part of modern construction, offering structural support and design flexibility. Here’s why they’re commonly used in Australian homes and buildings:

• Efficient Load Distribution: Trusses evenly distribute the weight of the roof to the building’s walls, enhancing stability.
  
  

• Cost-Effective: Prefabricated roof trusses reduce on-site labour and material waste, saving time and money.
  
  

• Design Flexibility: Available in various shapes and sizes to suit different architectural styles, ceiling heights, and roof spans.
  
  

• Quick Installation: Prefab trusses can be installed faster than traditional stick-framed roofs, speeding up your build time.
  
  

• Consistent Quality: Factory-built trusses ensure accuracy, consistent quality, and adherence to building codes.
  
  

• Spans Large Areas: Trusses can span longer distances without internal support, ideal for open-plan layouts.

• Supports Heavy Roofing Materials: Especially important for roofs with tiles, solar panels, or insulation systems.

How Much Do Roof Truss Experts Charge?

The cost of hiring a roof truss expert in Australia depends on various factors such as the size and complexity of the roof, the materials used, location, and whether the trusses are pre-made or custom-designed.

• Site Inspection & Design Consultation: $150 – $400
  
  

• Supply & Installation (Timber Trusses): $60 – $120 per square metre
  
  

• Steel Trusses Installation: $80 – $160 per square metre
  
  

• Custom Roof Truss Design & Engineering: $800 – $2,500+ (project-based)
  
  

• Labour Only (Installation): $45 – $85 per hour

To get an accurate quote, it's best to post your project on ServiceTasker and receive free quotes from licensed roof truss specialists in your area.