Floor Joists
Light steel floor joists, longer spans
Lightweight yet incredibly strong LGS floor joists, made to order and spanning up to 8 metres for open, flexible floor plans.
Stable, efficient floors for every build
Steel floor joists are lightweight yet incredibly strong, providing long-term stability as an essential element of any steel-framed building. Their robust design makes them one of the most cost-effective structural solutions available.
Phu Nguyen Steel manufactures light gauge steel floor joists in customisable sizes, from 200 mm to 600 mm deep. Every joist is double-screwed for strength and reliability, and smart floor setting-out can reduce the need for heavy structural steel.
Their high strength-to-weight ratio reduces internal load-bearing walls and columns, giving a smoother, more efficient floor layout with a precise finish that other materials struggle to match.
Why choose steel floor joists?
Steel joists have clear structural advantages over traditional timber.
Durability
Highly resistant to deterioration. Never rots, warps, shrinks or sags, and never attracts termites.
Ease of use
Delivered pre-fabricated to your design, saving significant labour cost and installation time.
Built for the elements
Zinc-aluminium-magnesium coating protects exposed steel edges from corrosion for low-maintenance homes.
Design flexibility
Longer spans mean fewer load-bearing columns and more freedom in your floor layout.
Why build with Phu Nguyen Steel
A complete, engineered steel framing system for every sector, from single homes to large commercial developments.
Comprehensive service
Design, engineering, manufacturing and delivery under one roof, optimised for residential, hospitality and commercial projects of any size.
Strength & performance
Every frame is engineered for maximum strength. Design software and automated roll-formers produce frames, trusses and joists quickly and precisely.
Expertise & innovation
Experienced engineers and site specialists who solve the challenges of your specific project and deliver outstanding results on schedule.
Planning a steel frame build?
Send us your drawings or a rough idea. Our engineers will review your project and come back with a framing solution and a detailed quote within 24 hours on business days.








