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Firmlok Beams

Need beams that go up fast and look sharp? Firmlok beams are strong, low-maintenance, and perfect for outdoor builds.

Firmlok Beams are a strong, lightweight steel solution for patios, awnings, carports, and outdoor structures. Their clean rectangular profile and pre-painted finish deliver a modern look with no need for welding or on-site painting. Unlike timber, they won’t warp, rot, or split, making them a durable, low-maintenance choice. Available in popular Colorbond® colours, Firmlok Beams are easy to install and built to last in tough Aussie conditions.

  • Available in three sizes: 100x50mm, 150x50mm, and 200x50mm
  • Pre-painted Colorbond® finish — no need for on-site painting
  • Clean rectangular box profile for a modern, architectural look
  • Made from high-strength steel that won’t warp, split, or rot like timber
  • Low-maintenance and ideal for patios, verandas, carports, and awnings
  • Compatible with matching posts, brackets, and accessories

Firmlok Beam Colours

Technical Specifications – Firmlok Beams


Size (mm)Thickness (mm)Mass (kg/m)Stock Lengths
100 x 500.551.904.0m, 5.0m, 6.1m, 7.5m
150 x 500.753.174.0m, 5.0m, 6.1m, 7.5m, 9.0m
200 x 501.005.005.0m, 6.1m, 7.5m, 9.0m

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At Jay Jay Building Supplies, we are very selective about the brands we distribute to our customers. We only accept the most reliable products from the most reputable companies. Reach out to our specialists for more information and advice.