How Far Apart Should Gutter Brackets Be?

Written by Daniel Woodley. Fact checked by Paul Farley. Published to Hard Landscaping & Building on the 5th November 2023.

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I’ve worked in the building, construction and landscaping industries for over 20 years but roofing was the first trade I learnt.

I was recently working on a project where a roofer who I didn’t know was installing guttering and I noticed the clips (brackets) were spaced quite far apart.

I quickly measured the distance and they were 1 metre apart.

That’s too much.

I took this photo about 10 years ago:

Gutter sag caused by icicle

Gutter sag caused by the clips being spaced too far apart

That Photo ↑

The photo above shows gutter sagging – this was caused by an icicle that had formed in the winter.

As the gutter brackets were spaced so far apart, the weight of the icicle warped the gutter, which led to more water cascading over the edge and freezing, which led to an even bigger icicle.

The photo below was also taken by me. The gutter is also sagging due to the clips being spaced so far apart. When it rains heavily, water pours over the edge of the gutter and onto the ground:

Gutter sag

Gutter sag caused by the clips being spaced too far apart and moss weighing it down.

Best Gutter Bracket Spacing

Based on the hundreds of homes I have installed guttering to (and repaired) over the years, I know that 1 metre spacings are far too wide apart and can lead to gutter sag and overflows. This is something I’ve seen many dozens of times, although usually on semi-circular guttering.

I have always installed guttering with the clips spaced no more than 800mm apart and I have never had an issue with gutter sag.

I used to provide 10 years guarantees to my customers for guttering work, and I never once had a claim due to an issue with the gutter bracket spacing.

Here are a few other best practices I always followed:

1) Gutter brackets should be no more than 200mm from the end of the guttering section.

2) No more than 200mm from either side of the outlet.

3) If the gutter joint (union) only has one central screw hole, brackets must be placed no more than 200mm on either side of it to provide extra support and to stop it from twisting/pivoting. If the joint has a screw fixing on each side, there’s no need to place brackets either side of it; that would be optional.

4) If the guttering is installed to the correct fall ratio, water won’t pool and will drain from the gutter. I always installed the gutter with a fall of 10mm every 3 metres (1:300 gradient).

Photos

Here are a couple of photos I took years ago when I was installing guttering every day:

Gutter spacing

The gutter clips here are spaced 800mm apart and will never sag.

Gutter bracket spacings

Again spaced 800mm apart with a stringline to ensure there are no dips in the gutter.

Author: Daniel Woodley

Daniel has over 18 years of experience in the construction, home improvement, and landscape garden industries.

He previously worked as a project manager and has experience in managing teams of tradespeople and landscape gardeners on both small and medium sized projects.

Daniel is also a keen gardener and enjoys growing unusual plants and tending to his lawn.

More About Daniel Woodley.

Daniel Woodley

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Daniel Woodley wrote this guide to gutter bracket spacings. Daniel is a qualified landscape gardener and has many years of experience in this field and also in construction, where he worked initially as a roofing contractor and then as a project manager.

As accuracy is important, we asked Paul Farley to review and fact-check this guide.

Explore: Paul Farley’s profile and qualifications.

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