Timber vs Steel Wall Frames & Roof Trusses: Making the Right Choice for Your Kit Home
When building a kit home, the structural integrity and longevity of the property largely depend on the choice of wall frames and roof trusses. Two common options available in the market are timber and light gauge steel, both of which offer distinct advantages. Understanding their characteristics can help homeowners make an informed decision based on durability, performance, and personal preference.
Timber Wall Frames & Roof Trusses
Timber has long been a trusted material in home construction due to its cost-effectiveness, ease of use, and thermal performance. One popular choice for timber framing is T2 pine, which is treated specifically for termite resistance. This ensures the longevity of the structure in termite-prone areas, making it a reliable option.
When constructing with timber, stud spacing must be carefully considered. Typically, timber stud centres are set at 600mm, but reduced spacing—such as 450mm—may be required in wet areas like bathrooms and laundry rooms for added strength and stability. Roof truss spacing can vary from 600mm to 1200mm, with additional ceiling battens and roof safety battens required when spacing exceeds 600mm to support roofing materials and prevent structural sag.
Light Gauge Steel Wall Frames & Roof Trusses
Steel framing is growing in popularity due to its resistance to pests, warping, and moisture damage. Galvanised steel wall frames offer superior protection against rust and corrosion, making them a durable choice in humid or coastal regions.
Like timber, steel stud spacing is generally 600mm, though tighter spacing of 450mm can be used in wet areas for enhanced stability. Roof trusses in steel can also be installed at 600mm, 900mm, or 1200mm centres, with extra safety battens and ceiling battens required at wider spacings to support load distribution and roof integrity.
Cost & Performance Comparison
Regardless of whether timber or steel is chosen for framing, both materials perform similarly in terms of structural integrity and longevity when properly installed. Pricing remains comparable, meaning the final decision often comes down to personal preference. Timber may appeal more to those looking for traditional, natural aesthetics, while steel provides a modern, precision-engineered solution that resists environmental factors better.
In the end, both options offer reliable performance, and the choice ultimately hinges on what best suits the homeowner’s needs, climate conditions, and design preferences.
Timber vs Steel Wall Frames and Roof Trusses