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Colorbond Box Gutter Zincalume-Box-Gutter-300mm-metal-roofing-online

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Rainhead Flashing Order Form Sump / Tray Flashing Form EXAMPLE Flashing Order CUSTOM Flashing Order Form
Would you like a custom flashing, sump, or rainhead? Please download the applicable order sheet and return it to us at sales@metalroofingonline.com.au

ZINCALUME® Box Gutter – 150 x 300 x 150

Durable concealed guttering made from 100% Australian ZINCALUME® steel – precision cut, customisable, and built for performance.

To order: Select your required length above, or contact us for custom dimensions.

✔ Built for Hidden Strength

Designed to be concealed while delivering exceptional drainage, this 300mm ZINCALUME® box gutter is ideal for homes and commercial roofs needing clean lines and high-volume water control.

✔ Custom Sizes Available

Need a different size? We can manufacture to your specs. Download the Custom Flashings Order Form and return it to sales@metalroofingonline.com.au or call 1300 886 944.

✔ Gutter Fall Guide

Box gutters should be installed with a minimum fall of 1:200 for effective drainage and compliance with Australian standards.

✔ Tolerance & Fit

Flashing Length Tolerance: +200mm / -0mm — allows flexibility during installation without compromising fit.

✔ Colour Options

This product is usually hidden from view, but if colour matching matters for your project, a wide range of COLORBOND® or ZINCALUME® finishes is available.

✔ Fast Delivery 

Delivery takes approximately 4–5 working days, depending on your location.

✔ 100% Australian Steel. 100% Peace of Mind.

Manufactured from genuine BlueScope ZINCALUME® steel, rigorously tested and backed by a trusted warranty. Shop with total confidence knowing your materials are made to last.

Need flashings to your specs? Custom Flashing Order Sheet

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