The uncomplicated square appearance of the box gutter suits both contemporary and more traditional dwellings. High fronted, it conceals ends of roof iron and can be fixed with either internal or external brackets. This gutter is well designed to capture water run-off from large surface areas. Internal brackets are the most common choice with 125 Box Gutter, providing extra strength.

  • 8750mm2 effective cross sectional area

  • Rollformed in  Zincalume,  Colorsteel Maxx,  Copper (price on application),  folded in 0.9mm BMT Aluminium

  • Lengths are run to order (maximum 8m)

  • Manufactured in Stratford

  • Suitable for residential and light commercial applications



Internal and External brackets are available and are compatible with selected substrate to avoid dissimilar material contact. It is recommended to space brackets at 600mm centres.


Screw fastenings are to be compatible with substrate and bracket material avoiding dissimilar material contact.

Corners and Stopends

All corners and stopends are formed on site at the time of installation, please allow enough material to do so.



Various downpipes and accessories (both PVC and Colorsteel) can be ordered in from our suppliers. For pricing and availability please contact a Steelformers sales representative.


New Zealand is exposed to a wide range of environmental conditions. All rainwater systems are available in a range of finishes to suit any environment. Prior to selecting a product from this guide, you can discuss your particular site conditions with a Steelformers sales representative to ensure the profile and finish will perform to your expectations.

Material Compatibility

Contact with or water run-off from dissimilar metals such as lead, copper or stainless steel should be avoided with any Colorsteel® or Zincalume® product. In particular, avoid discharging copper spouting or downpipes from upper storeys onto lower roof sections.

The Colorsteel® Range

Please note that the colours shown are indicative only and will vary depending on your screen resolution and/or print quality. We recommend you request a sample from your nearest Steelformers branch.

The basic Colorsteel® range applies. However, please check with a Steelformers representative prior to ordering as it may not be stocked in our range. 


Steelform 125 Box Gutter can be supplied on a 'supply only' or 'supply and fit' basis (working alongside Central Roofing, our chosen, certified team of installers).

Contact a Steelformers representative to arrange a free, no obligation quote.

Building Code Compliance

Products selected and maintained in accordance with Taranaki Steelformers and New Zealand Steels recommendations will meet the performance expectations in regards to durability as expressed in the New Zealand Building Code.

Maintenance Guidelines

All products are subject to the cumulative​ effects of weather, dust, salt and other airborne deposits. In order to ensure the maximum life from the chosen product, the property owner should note: normal rain washing with remove some atmospheric debris, but manual washing is required for areas that do not receive adequate rain washing. Specifically, the underside of spouting, and the fascia surface (which is sheltered by the spouting attached). As these are high risk areas, these require regular manual washing as a condition of the warranty.

In all cases, spouting should be cleaned out at least every 6 months - more frequently in marine areas or where there is severe fallout from leaves etc. Refer to New Zealand Steels Specifiers and Builders Guide for more information.

Useful Links


Because of Taranaki Steelformers’ policy of continuous product improvement, the company reserves the right, at any time and without notice to discontinue or modify designs, features and other specifications of their product. Taranaki Steelformers reserves the right to either temporarily or permanently withdraw any such product from the market without incurring any liability. Taranaki Steelformers disclaim any liability for loss or damage suffered from the use of such material as all information is correct to the best of our knowledge at the time of publishing. As this is only issued as a general guide, it should be not be treated as a substitute for detailed technical advice.


Taranaki Steelformers Ltd

23 Katere Road


New Plymouth 4312

0800 4 ROOFING

06 7583831



Wanganui Steelformers

380 Heads Road


Wanganui 4501

0800 800 077

06 3445142




Steelformers Stratford

Mountain Road

PO Box 36

Stratford 4332

0800 655 142

06 7655191



King Country Longrun

Huia Street

PO Box 7

Taumarunui 3920

07 8956464






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