Combined Metal Industries has a wide range of downpipes and accessories for any residential or commercial application. Our downpipes are manufactured from the same, high quality materials as our other wall and roofing materials. They are made to last and look good for life.

The correct guttering and downpipes are important for collecting and disbursing water and also protecting the structure of your home. Broken and poor fitting gutters and downpipes can lead to water damage that isn’t always obvious until it starts costing you money.


COLORBOND roofing and Walling colours CMIWA


Round downpipes are available in a wide range of diameters and are suitable for a variety of residential and commercial projects. They have a timeless shape and can suit modern and traditional building designs.

    • Available in COLORBOND® or ZINCALUME® in 1.8m and 2.4m lengths
    • Available in the following diameters:


Download Technical Data

Round Downpipe Steel Western Australia CMIWA


Rectangular downpipes provide a clean, modern finish to any home as they sit flush against the wall. They are suitable for both residential and commercial applications and come in a variety of sizes and colours, with a variety of accessories.

    • Available in COLORBOND® or ZINCALUME® in 1.8m & 2.4m lengths
    • Available in the following sizes:
75 x 50mm125 x 100mm
95 x 45mm150 x 100mm
100 x 50mm150 x 150mm
100 x 75mm
100 x 100mm
125 x 100mm
150 x 100mm


Download Technical Data

Square Downpipe Steel Western Australia CMIWA


CMI manufactures the full range of downpipe accessories to compliment our range of square and round downpipes.

Accessories include: 

  • Downpipe clips
  • Downpipe pops
  • Downpipe offsets
  • Downpipe shoes and elbows
  • Rainheads
Round Gutter downpipe components CMIWA