How Many Gutter Brackets Do I Need?
Quick Answer
One bracket every 900mm max — 6m run = 7 brackets
Based on: standard half-round or square-line PVC guttering, fascia-mount brackets at 900mm maximum centres
How We Calculated This
Gutter brackets support the guttering and must be spaced at regular intervals:
- Gutter run: 6m
- Maximum spacing: 900mm (as per BS EN 12056)
- Brackets: (6 ÷ 0.9) + 1 = ~7.7, round up to 8
- In practice, 7 brackets at ~860mm centres works well for 6m
- Always place a bracket within 150mm of each joint and outlet
Bracket Spacing by Material
- PVC guttering: 900mm max centres
- Cast iron guttering: 900mm–1000mm centres
- Aluminium guttering: 900mm max centres
- Steel guttering: 900mm max centres
Types of Bracket
- Fascia bracket: Screws to the fascia board — most common for replacements
- Rafter bracket (rise & fall): Screws to the rafter tail — used where no fascia board exists
- Top rafter bracket: Fixes to the top of the rafter, sits under the tiles
- Side rafter bracket: Fixes to the side of the rafter
Quick Reference Table
- 3m run: 4–5 brackets
- 4m run: 5–6 brackets
- 5m run: 6–7 brackets
- 6m run: 7–8 brackets
- 8m run: 10 brackets
- 10m run: 12 brackets
Tips
Set the gutter to fall towards the downpipe outlet at a gradient of about1:350 (roughly 3mm per metre). Use a string line between the highest and lowest bracket to ensure a consistent fall. Always place brackets either side of any joint or union. Use stainless steel screws for longevity.