Rolled Beams G550S 80GL CS

G550S Rolled Steel Beams – 100×50, 150×50 & 200x50mm
Build stronger, longer-lasting outdoor structures with our premium G550S Rolled Steel Beams. Available in three versatile sizes—100x50mm, 150x50mm, and 200x50mm—these beams are engineered from high-tensile G550S steel and feature an 80GL protective coating for enhanced durability and corrosion resistance.Perfect for patios, pergolas, carports, verandas, awnings, and other residential or commercial applications, these rolled beams provide outstanding structural performance while remaining lightweight and easy to handle.
Key Features:

• Available in 100x50mm, 150x50mm, and 200x50mm profiles
• Manufactured from high-strength G550S steel
• Durable 80GL protective coating for corrosion resistance
• Lightweight design for easier transport and installation
• Suitable for patios, pergolas, carports, and outdoor structures
• Low-maintenance alternative to traditional timber beams
• Designed to withstand harsh Australian weather conditions
• Available in a range of lengths and COLORBOND® compatible finishes

Whether you’re constructing a new outdoor living area or upgrading an existing structure, G550S Rolled Steel Beams deliver the strength, reliability, and clean modern appearance needed for long-term performance.

Why COLORBOND^® steel

Durability

With five layers of protection, COLORBOND^® steel has been designed to endure our harsh Australian environment and provide long-lasting durability you can trust. Our high quality steel is coated in our industry leading enhanced corrosion-resistant Activate^® technology*, then further enhanced with pre-treatment, primer and a baked-on topcoat.Learn more about our testing and five layers of protection

*Activate^® technology is not available for COLORBOND^® steel products with a galvanised steel substrate.

Thermal comfort

COLORBOND^® steel’s core colour range in the Classic and Matt finish features our specially designed Thermatech^® solar reflectance technology. Thermatech^® reflects more of the sun’s heat on hot, sunny days which may help increase your comfort while reducing your dependence on air conditioning*. Thermatech^® is available in all core colours except Night Sky^®.Learn more

*Results will depend on roof colour, level and location of insulation, type and location of building shape and function.

Sustainability

To help create a more sustainable ‘circular economy’, every COLORBOND^® steel product incorporates recycled material and the steel itself is 100% recyclable. Moreover, COLORBOND^® steel’s proven longevity keeps resources in use for longer, minimising its impact on the environment.Learn more

Warranty backed by BlueScope

When you choose COLORBOND^® steel, you’re also getting the support of BlueScope, one of Australia’s largest manufacturers. That’s why COLORBOND^® steel’s renowned durability is backed up by some of the most robust building product warranties for eligible applicants.Learn more

Make sure it’s genuine

Over fifty years of Australian research and development has created a range of technologies that give genuine COLORBOND^® steel its long lasting performance when subjected to some of the harshest Australian conditions. You can make sure you’re getting the genuine article by looking out for the COLORBOND^® steel branding on the product, or its packaging.Learn more