LYSAGHT TRIMDEK®
Discover LYSAGHT®'s range of COLORBOND® roofing, guttering, and fascia products. Durable, stylish, and built for Australia's harshest conditions.
- BMT Range
- 0.42 mm BMT
- Category
- roofing
- Available Colours
- Various
- 29 mm hi-rib for superior spanning
- 762 mm nominal cover width
- COLORBOND Activate coating
- Suitable for 2° minimum pitch
- Matching ridge, hip and valley flashings
POA
Price on Application
This product is custom-cut, large-volume or project-specific. Submit a quote request and our trade desk will respond within 2 business hours.
Overview
A versatile roof and wall cladding featuring bold, trapezoidal ribs and subtle fluting in the pans. It is available in long lengths, so on most jobs you can have one sheet from ridge to gutter without end laps.
Technical Specifications
| Product Type | Building Material |
|---|---|
| Profile | Trimdek |
| Finish | steel |
| Base metal thickness (BMT) | 0.42 mm |
| Cover width | 762.00 mm |
| Colour | Various |
| Unit of measure | LM |
| warranty | |
| installation |
| Steel base | BlueScope COLORBOND or ZINCALUME steel |
|---|---|
| Finishes | COLORBOND Classic, Matt, Metallic, Coolmax, Ultra; ZINCALUME |
| Yield strength | G550 (550 MPa minimum yield) |
| Coating | AM100 / AZ125 metallic alloy coating with Activate technology |
| Steel standard | AS 1397:2021 |
| Paint standard | AS/NZS 2728:2013 |
Compliance
Standards & Certifications
High-tensile steel base
Cold-rolled from G550 steel (550 MPa minimum yield strength) with a metallic alloy coating, manufactured by BlueScope to the relevant Australian Standard.
AS 1397:2021
COLORBOND prepainted finish
COLORBOND prepainted steel finishes are manufactured to the Australian Standard for prepainted steel, incorporating Activate technology for corrosion resistance and (in core colours) Thermatech solar reflectance.
AS/NZS 2728:2013
Non-combustible material
Steel made by BlueScope has an Ignitability, Spread-of-Flame and Heat-Evolved index of 0 (zero), so it may be used wherever a non-combustible material is required under the National Construction Code (NCC 2022 C2D10).
AS/NZS 1530.3
Suitable for bushfire-prone areas
Steel roofing and walling can be specified from BAL-12.5 up to BAL-FZ (Flame Zone) using compliant system details under AS 3959 and the NASH Bushfire Standard, which the NCC references as a Deemed-to-Satisfy solution.
AS 3959 / NASH
Designed and installed to standard
Metal roofing and wall cladding is designed, tested and installed to the metal roofing/cladding code, with wind actions assessed to the wind loading standard.
AS 1562.1 / AS/NZS 1170.2
Datasheets, Guides & Certificates
Manufacturer documentation for specification and compliance. Links open the original source documents.
Dimensions, masses, tolerances and maximum support spacings.
Profile overview, cover width and finishes.
Material specifications, support spacings, overhangs, fixing and handling for Lysaght profiles.
NCC clauses, applicable standards and warranty ranges for Lysaght steel roofing and walling.
Check eligibility and register a COLORBOND / ZINCALUME steel warranty for your project.
Colours Available
Use Cases
- Residential roofing
- Commercial warehouse
- Agricultural shed
- Pergola and patio cover
- Feature wall cladding
Applicable Standards
- AS 1562.1
- AS/NZS 1397
- NCC Section J
FAQ
LYSAGHT TRIMDEK® — Frequently Asked Questions
How low a pitch can TRIMDEK go to?
TRIMDEK can be laid to a minimum roof pitch of 2° subject to Lysaght design provisions — significantly lower than corrugated, which is why it suits modern low-pitch homes and light commercial roofs.
Does TRIMDEK span further than corrugated?
Yes. The 29 mm hi-rib gives greater spanning capacity than corrugated, so you can use wider support spacings and fewer purlins. Refer to the Lysaght brochure span tables for your wind classification.
Can TRIMDEK be used for walling?
Yes — TRIMDEK is a roof and wall profile. Walling is commonly 0.35–0.42 mm BMT, roofing 0.42–0.48 mm BMT.
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