Trimdek Roof Sheets: The Ideal Roofing Solution for Australian Homes

When selecting your roof materials, Trimdek roof sheets stand out as a versatile choice for roofing, wall cladding, and interior use. Manufactured from high-quality COLORBOND® and ZINCALUME® steel by BlueScope, LYSAGHT TRIMDEK® is engineered to handle Australia’s tough climate. Its bold trapezoidal ribs, square fluting, and lightweight strength allow for joint systems like the trim klip, preserving clean roof lines and enabling thermal movement.

Why Choose Trimdek Roofing?

Trimdek roofing is ideal for residential, commercial, and industrial buildings thanks to its high spanning capacity, modern design, and strength. The bold ribs and subtle fluting offer structural integrity and a contemporary finish—an excellent alternative to traditional corrugated roofing. Available in both COLORBOND® and ZINCALUME®, it performs well in all weather while enhancing your building’s aesthetics.

What is Lysaght Trimdek Roofing?

Trimdek is a steel roofing and cladding system featuring trapezoidal ribs and fluted pans. It’s available in COLORBOND® shades like Classic Cream, Deep Ocean, Cottage Green, Woodland Grey, Shale Grey, Night Sky, and more—ideal for both residential and commercial use.

Benefits of Trimdek

Trimdek delivers wide spanning capacity, which reduces the need for supports—saving on materials and installation. Its resistance to deformation ensures durability even in extreme weather, making it a cost-effective solution across all project types.

Difference Between COLORBOND® and Trimdek

Trimdek is a profile; COLORBOND® is the material. COLORBOND® brings colour durability, while Trimdek’s profile offers added strength and sleek aesthetics. You can mix and match profiles and finishes to suit your build.

Trimdek vs. Corrugated Roofing: Which One is Right for You?

👉 For a streamlined, modern look and wider spans, Trimdek is the better option.

Trimdek Profile, Specifications & Wall Cladding

• Sheet Width: 762mm
• Cover Width: 762mm (after overlap)
• Rib Height: 29mm
• Minimum Pitch: 2°
• Material: COLORBOND® or ZINCALUME® steel
• Weight: Varies with BMT

👉 Need custom lengths? We cut to order to reduce waste and improve efficiency.

Design and Aesthetics

Trimdek’s ribbed profile and fluted pan enhance any building's look. With finishes in Classic Cream, Deep Ocean, Shale Grey, Manor Red, and more, it fits a wide range of design schemes. It’s an ideal choice for modern homes and commercial buildings seeking a clean finish.

Trimdek Roofing Cost and Value

Trimdek offers high performance and affordability. Reduced support needs and lower maintenance make it a smart investment.

What Affects Trimdek Pricing?

• Material: COLORBOND® or ZINCALUME®
• Length: Custom vs standard
• Colour: Standard vs premium Matt finishes

Minimum Pitch & Sheet Coverage

• Minimum Pitch: 2°
• Coverage: 762mm per sheet (with overlap)
• Overlap: One rib for full weather protection

Installation and Maintenance

• Inspect your structure before installation
• Follow manufacturer instructions for fixing and sealing
• Schedule regular inspections for early issue detection
• Clean periodically to prolong lifespan

Safety and Structural Integrity

Trimdek’s profile ensures excellent spanning ability and recovery from deformation, reducing support needs and enhancing safety in all environments. Its resistance to corrosion adds long-term reliability.

Warranties and Compliance

Backed by a 25-year warranty and certified to AS 1397 and AS 4040.6, Trimdek meets the highest Australian standards. Built from premium COLORBOND® and ZINCALUME® steel, it’s a trusted choice for builders and architects.

Why Trimdek is the Smart Choice

Ordering Trimdek from Metal Roofing Online means quality, durability, and peace of mind. Our COLORBOND® and ZINCALUME® products are locally made and tested for Australian conditions.

🚀 For modern roofing that performs and lasts, Trimdek is the superior solution—designed to meet your aesthetic, structural, and budget goals.