Trimdek
A versatile, trapezoidal-rib steel cladding with wide spans, clean lines, and strength for any build.
LYSAGHT® TRIMDEK® is a lightweight yet durable roofing and walling profile featuring bold trapezoidal ribs and subtle pan fluting for a clean, structured finish. Engineered for strength and spanning capacity, TRIMDEK® reduces the need for close structural framing and is suitable for pitches as low as 2°. Available in both COLORBOND® and ZINCALUME® steel, TRIMDEK® is a trusted choice across residential, commercial, and industrial projects where performance and appearance both matter.
- Conventional trapezoidal ribs with subtle pan fluting for a neat, modern look
- Nominal cover width: 762 mm
- Rib height: 29 mm
- Minimum roof pitch: 2°
- Lightweight, strong, and economical for large areas
- Excellent spanning capacity reduces framing requirements
- Wide support spacings for flexibility and design efficiency
- Consistent recovery after loading helps maintain long-term performance
- Suitable for both roofing and wall cladding
- Manufactured from COLORBOND® or ZINCALUME® steel
- Backed by Australian standards and industry warranties
Classic Colorbond Colours
Colorbond Double Sided Colours
Colorbond Ultra Colours
Colorbond Matt Colours
Technical Specifications – TRIMDEK®
| Specification | 0.42 BMT | 0.48 BMT |
|---|---|---|
| Mass (kg/m²) | 4.23 | 4.81 |
| Nominal Cover Width (mm) | 762 | 762 |
| Rib Height (mm) | 29 | 29 |
| Minimum Roof Pitch | 2° | 2° |
| Fixings (screws/m²) | 5 | 5 |
Maximum Support Spacing (mm)
Roofing Applications
| Span Type | 0.42 BMT | 0.48 BMT |
|---|---|---|
| Single Span | 1100 | 1600 |
| End Span | 1300 | 1850 |
| Internal Span | 1900 | 2600 |
| Unstiffened Eaves Overhang | 150 | 200 |
| Stiffened Eaves Overhang | 300 | 350 |
Walling Applications
| Span Type | 0.42 BMT | 0.48 BMT |
|---|---|---|
| Single Span | 2400 | 2700 |
| End Span | 3000 | 3000 |
| Internal Span | 3000 | 3000 |
| Overhang | 150 | 200 |
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