Description
Steel roofing or walling featuring tall slender ribs and broad, flat pans
Combining a sleek, linear appearance aided by a concealed fixing system, LONGLINE 305® is suitable for roofing or walling, and can be manufactured tapered to create a fanned roofline. The slender, tall ribs of the profile create a dramatic shadowing effect as sunlight moves across the roof or wall, and the profile is adept at bold roof-to-wall transition designs.
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Profile Variants
LONGLINE 305®
The LONGLINE 305® is the original roofing profile, offering sleek lines and unparalleled performance. It ensures compatibility with roof sheets and wall cladding systems for versatile applications.

LONGLINE 305®WA Variant
The LONGLINE 305® (WA Variant) is tailored for specific applications in Western Australia. Its precise construction and compatibility with roof profiles make it a trusted choice for projects in the region.

Zenith™ Range

Zenith® Range
BOLD PROFILES, ENDURING PERFORMANCE.
Lysaght's ZENITH® range is a collection of premium steel cladding profiles, designed to deliver bold aesthetics and outstanding performance for modern architecture. With six striking profiles, the ZENITH® range provides designers and builders with distinctive options:
- LONGLINE 305® – Slender, high ribs with broad, flat pans create a dramatic, architectural look. Can be tapered for unique designs.
- ENSEAM® – Broad, flat pans with prominent ribs deliver a modern, linear aesthetic, suited for vertical, horizontal, or diagonal installation.
- SNAPSEAM™ – Similar in appearance to ENSEAM®, but with a concealed clip system for a sleek, uninterrupted finish.
- IMPERIAL™ – A standing seam profile with slim ribs and flat pans, allowing for curved or straight applications.
- DOMINION® – Raised panels with recessed express joints, offering a clean, modular façade in vertical or horizontal layouts.
- BAROQUE™ – A heritage-inspired design featuring rounded ribs and wide pans, blending classic and contemporary aesthetics.
Engineered for durability, flexibility, and design impact, the ZENITH® range is ideal for projects that demand both visual appeal and long-term performance.
Finishes & Colours
COLORBOND® Steel Colour Range
COLORBOND® Steel Colour Range
Core Colour Range
Core Colour Range
The COLORBOND® steel colour palette is designed to allow you to confidently express yourself. Choose from 22 classic and contemporary colours. With an inspiring palette to choose from, COLORBOND® steel gives you the ability to create the right colour scheme. Your home, your colours, your choices.
Ultra Colour Range
Ultra Colour Range
With a softer, contemporary finish, these colours allow you to make stylish and defining design choices while retaining the durability you’d expect.
Matt Colour Range
Matt Colour Range
COLORBOND® steel’s new Matt finish offers a softer look in neutral tones, allowing you to make a sophisticated and personal design statement.
Metallic Colour Range
Metallic Colour Range
Featuring long-lasting lustre due to the strategically-placed particles in the paint system, these colours are ideal for striking, attention-grabbing buildings.
COLORBOND® Steel Studio Library
For more ambitious projects meeting minimum order requirements and requiring more precise colour matching, COLORBOND® steel Studio provides an extended catalogue of more than 200 COLORBOND® steel colours searchable by closest matching RGB or HEX colour values or Dulux or RAL colour names.
Unpainted Steel Range
Unpainted Steel Range
ZINCALUME® Steel
ZINCALUME® Steel
Combining the classic aesthetic of raw, unpainted steel with a tough protective coating to effectively resist corrosion.
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