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Garden Water Butts Rainwater, sorted
Size guide Journal

Small Water Butts

A small water butt is ideal for a shed, greenhouse or summerhouse roof. A 100 litre butt fills quickly from a small roof, is easy to move into place and won’t take over the garden.

Many come as complete kits with a stand and diverter. If you find it filling up after every shower, you can always add a second one later with a linking kit. Our size guide shows how much your roof will collect.

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Need a hand?

Helpful guides before you buy

Gardener measuring a shed roof with a tape measure above a water butt

What size water butt do I need?

Work it out from your roof in two minutes.

Man cutting a downpipe to fit a rain diverter with a new water butt beside him

How to fit a water butt

Step-by-step, with a rain diverter.

Tall grey stone-effect water butt beside a modern garden patio

Best water butts in the UK

Our picks for every garden.