Repair Systems — Roofing Defects — Gutter Replacement
Quad gutter systems — ogee and square-profile gutter replacement
Quad gutters (also called ogee gutters) are the most common residential gutter profile in Australia, widely available from Lysaght, Stramit and Stratco in standard and Colorbond steel. Replacement is required when gutters corrode, sag, overflow due to undersizing, or fail at joint sealants and end caps.
What are quad gutter systems?
Quad gutters (also called ogee gutters) are the most common residential gutter profile in Australia, widely available from Lysaght, Stramit and Stratco in standard and Colorbond steel. Replacement is required when gutters corrode, sag, overflow due to undersizing, or fail at joint sealants and end caps.
Product Reference
3 products — Lysaght, Stramit, Stratco — quad (ogee) gutter systems — scroll to view all
System Description
Lysaght QUAD Gutter is the market-leading quad (ogee) profile gutter formed from BlueScope Colorbond or Zincalume steel. Available in 115mm and 150mm standard residential sizes with 6m standard lengths. The Lysaght system includes a comprehensive range of internal and external angles, joiners, stop ends, and downpipe adapters to allow complete installation of the gutter system without site-fabricated components. The quad profile is the dominant residential gutter shape in Australia, characterised by its ogee (S-shaped) cross-section. Lysaght gutters are formed from BHP BlueScope steel substrate and are available in the full range of current Colorbond colours. For coastal and marine environments, Zincalume steel provides enhanced corrosion resistance compared to standard painted finishes. Replacement works must comply with AS/NZS 3500.3 for minimum gutter fall (1:500) and outlet sizing. Confirm the current product range, available sizes, and Colorbond colour availability with Lysaght or your local roofing supplier before ordering.
Technical Properties
- Quad (ogee) profile formed from BlueScope Colorbond or Zincalume steel — 115mm and 150mm standard sizes
- Available in 6m lengths — complete range of fittings: angles, joiners, stop ends, and downpipe adapters
- Full range of current Colorbond colours — coastal environments may warrant Zincalume specification
Limitations
- Not suitable for box gutter applications — this is a profiled external eave gutter only
- Gutter sizing must be confirmed against rainfall intensity zones per AS/NZS 3500.3 — do not assume 115mm is adequate in high-intensity rainfall zones without calculation
- Colorbond finish is not suitable for direct contact with dissimilar metals (copper, lead) — confirm material compatibility on heritage or mixed-material roofs
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
System Description
Stramit Quad Gutter is Stramit's quad (ogee) profile external eave gutter formed from BlueScope Colorbond steel. Available in 115mm and 150mm standard sizes, the Stramit system includes a full range of fittings including angles, joiners, stop ends, and downpipe outlets. Stramit is a major national supplier of steel roofing and rainwater goods and the quad gutter is designed for compatibility with Stramit's range of corrugated and ribbed roof sheeting products. Available through Stramit branches and roofing trade suppliers nationally. Replacement works must comply with AS/NZS 3500.3 — confirm gutter sizing against the rainfall intensity zone for the building location. Confirm the current product range, Colorbond colour availability, and fitting compatibility with your local Stramit branch before ordering.
Technical Properties
- Quad (ogee) profile gutter in BlueScope Colorbond steel — 115mm and 150mm standard sizes
- Full range of fittings: angles, joiners, stop ends, and downpipe outlet adapters
- Compatible with Stramit corrugated and ribbed roof sheeting for co-ordinated material supply
Limitations
- Not suitable for box gutter applications — profiled eave gutter only
- Gutter sizing must be confirmed against rainfall intensity zones — do not specify without hydraulic calculation per AS/NZS 3500.3
- Minimum fall of 1:500 must be verified in the existing fascia line before replacement — fascia correction may be required
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
System Description
Stratco Quad Gutter is Stratco's quad (ogee) profile gutter formed from Colorbond steel, available in 115mm, 150mm, and an intermediate 125mm size not offered by all competitors. The 125mm size provides an intermediate hydraulic capacity option for situations where 115mm is marginal but 150mm is considered oversized for aesthetic or fascia width reasons. Stratco offers both pre-painted Colorbond finishes and galvanised steel options, providing flexibility for projects where a painted finish is not required or where galvanised material is more economical. The Stratco system includes a comprehensive range of internal and external angles, joiners, stop ends, and downpipe adapters. Available nationally through Stratco trade centres and roofing suppliers. Confirm the current product range, available sizes, and colour availability with your local Stratco trade centre before ordering. All replacement works must comply with AS/NZS 3500.3.
Technical Properties
- Quad (ogee) profile in Colorbond steel — 115mm, 125mm, and 150mm sizes — 6m standard lengths
- Intermediate 125mm size available — useful where 115mm is marginal and 150mm is oversized for the application
- Pre-painted Colorbond and galvanised steel options — colour and material flexibility
Limitations
- Not suitable for box gutter applications — this is a profiled eave gutter only
- The 125mm size may not always be stocked at all Stratco branches — confirm availability locally before specifying
- Galvanised steel option may not match Colorbond finishes on adjacent roofing — confirm material compatibility
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
System Comparison
Side-by-side comparison of quad gutter systems. All three brands supply Colorbond steel quad gutters with full fitting ranges — primary differences are sizing range and supplier relationships.
| Brand | Available sizes | Material | Fittings range |
|---|---|---|---|
| Lysaght | 115mm, 150mm | Colorbond / Zincalume steel | Angles, joiners, stop ends, downpipe adapters — full range |
| Stramit | 115mm, 150mm | Colorbond steel (BlueScope) | Full fittings range — compatible with Stramit roofing products |
| Stratco | 115mm, 125mm, 150mm | Colorbond steel / galvanised steel | Comprehensive fittings — intermediate 125mm size available |
Brand Equivalence Note
Lysaght QUAD ≈ Stramit Quad ≈ Stratco Quad— all are Colorbond steel quad gutters with full fitting ranges suitable for standard residential and strata re-guttering. Primary differences are sizing range and available fittings — Stratco offers an intermediate 125mm size not available from all competitors. Product selection is typically driven by the roofing contractor's existing supplier relationship and local stock availability.
Do not confuse quad gutter replacement with:
- Half-round gutters — different profile and hydraulic characteristics — listed on the half-round gutter systems page
- Box gutters — custom-fabricated internal gutters, not external eave gutters — listed on the box gutter systems page
- Gutter lining systems — proprietary relining products applied inside existing gutters rather than replacing them
- Fascia replacement — quad gutter replacement does not automatically include fascia board repair or replacement — assess fascia condition separately
- Downpipe replacement — gutter sizing must be matched to downpipe sizing and outlet locations — confirm downpipe adequacy as part of the re-gutter scope
Disclaimer
This page provides general technical information only. Final product selection must be confirmed against the current manufacturer technical data sheet, project specification, existing fascia condition, required gutter fall, rainfall intensity zone per AS/NZS 3500.3, and contractor supply relationships. Do not rely on this reference as a substitute for professional engineering or building consultant advice.