Wood Shed Treatments: Preserve, Protect and Personalise Your Outdoor Storage

Everything needed to clean, protect, preserve, and waterproof your garden shed.

A wooden shed is one of the most useful garden buildings — perfect for storing tools, bikes, or garden furniture. But being outside all year round, it's constantly exposed to the weather. That’s why using the right wood shed treatments is key to keeping your shed protected from rot, mould, and sun damage while still looking its best.

Start with a good quality wood preserver. Products like Barrettine Wood Protective Treatment penetrate deep into the grain, shielding your shed against fungal decay, algae, and insect attack. Available in clear or coloured versions, such as Osmo UV Protection Oil Extra, a preserver forms the foundation of long-lasting protection.

Once preserved, you can finish with either a wood oil or a garden paint. If you like a more natural look, go for an exterior wood oil such as Osmo Natural Oil Woodstain or Protek Timber ECO Shield. These soak into the timber, enhancing the grain and forming a flexible, water-repellent surface. Prefer a splash of colour? Water-based garden paints like Protek Royal Exterior Paint or Cuprinol Garden Shades offer long-lasting, weatherproof colour that resists peeling and fading — ideal for sheds that double as stylish features in the garden.

To keep your shed in top shape:

• Apply wood preserver to protect from rot and insects
• Choose a finish: clear, tinted, or colourful
• Re-treat every 2–3 years to maintain protection
• Use UV-resistant products for sheds in sunny spots
• Clean the surface before reapplying any treatment

Summary:

Whether your shed is brand new or simply in need of some TLC, the right wood treatment makes all the difference. From deep-penetrating preservatives to colourful topcoats, our range of wood shed treatments helps you keep your garden building protected, personalised, and looking great all year round.

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Displaying 64 products

Recommended
  4.9/5.0  (194)
A highly protective wood stain that colours, waterproofs, and protects garden sheds, fences and other garden wood for up to 5 years.
  • 2 coats
  • 5m² per litre
  • 2 hrs drying time
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Available in 5L
Recommended
  4.4/5.0  (83)
Turn hours into minutes and make light work of applying garden shed treatments with this handy pump spray system. Always check compatibility of shed treatment with sprayer before use.
Recommended
  5.0/5.0  (8)
A quick drying, translucent UV protection woodstain offering up to 10 years protection. Suitable for internal and external use.
  • 2-3 coats
  • 13m² per litre
  • 6 hrs drying time
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Available in 1L, 2.5L, 5L
Clearance
  4.9/5.0  (2983)
A solvent-based wood preservative that offers microporous protection against wood rot, fungi, decay and mould. Available in both clear and coloured formulations and ideal for garden sheds, log cabins and other garden structures.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
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Available in 1L, 5L
  4.9/5.0  (622)
A water-based garden paint for all types of exterior wood including garden sheds and fences. Provides up to 6 years weather protection and available in a wide range of attractive colours.
  • 2 coats
  • 10m² per litre
  • 1 hr drying time
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Available in 125ml, 1L, 2.5L, 5L
Clearance
  5.0/5.0  (1319)
A solvent-based, UV-resistant, deep penetrating, low odour protective treatment for all exterior wood including garden sheds, fences and more. Suitable for rough sawn and smooth timber and is harmless to beneficial insects and plants when dry.
  • 2-3 coats
  • 6m² per litre
  • 48 hrs drying time
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Available in 1L, 2.5L, 5L
  4.6/5.0  (593)
An all-in-one translucent stain to protect, feed and enhance exterior wood including garden sheds and other wooden structures.
  • 2 coats
  • 26m² per litre
  • 12 hrs drying time
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Available in 5ml sample, 125ml, 750ml, 2.5L
Special Offer
  4.7/5.0  (469)
An opaque, exterior wood oil that colours and protects a wide range of exterior wooden surfaces including garden sheds. Penetrative formula offers outstanding durability and will not crack, peel or flake off. Dries to a gentle satin-matt finish.
  • 2 coats
  • 26m² per litre
  • 12 hrs drying time
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Available in 5ml sample, 125ml, 750ml, 2.5L
  4.8/5.0  (425)
A water-based wood paint that colours, waterproofs and protects a wide range of garden substrates. Suitable for garden sheds, wooden fence panels, posts and other garden wood.
  • 3 coats
  • 12m² per litre
  • 4 hrs drying time
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Available in 250ml, 750ml, 2.5L, 5L
  4.7/5.0  (136)
A sprayable, water-based wood treatment for use with the Cuprinol Fence and Decking Power Sprayer. Colours and protects garden sheds, wooden fence panels and other garden wood.
  • 1 coat
  • 3m² per litre
  • 6 hrs drying time
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Available in 5L
  5.0/5.0  (614)
A high-quality clear exterior wood oil specifically formulated for log cabins, wooden sheds and garden decking. Dries to a durable, weather resistant finish that is water and UV resistant. Deep penetrating formula will not crack, flake or peel.
  • 2-3 coats
  • 8m² per litre
  • 48 hrs drying time
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Available in 5L
  4.9/5.0  (412)
A versatile, solvent-based wood stain for exterior use. suitable for both smooth and rough sawn timber including garden sheds and wooden fence panels.
  • 1-2 coats
  • 10m² per litre
  • 24 hrs drying time
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Available in 1L, 2.5L, 5L
  4.8/5.0  (309)
A highly penetrative, solvent-based wood preserver for exterior timbers including wooden sheds and garden fences. Prevents rot and decay whilst protecting against insect infestation. Available in clear and coloured formulations.
  • 3 coats
  • 8m² per litre
  • 24 hrs drying time
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Available in 5L
  4.9/5.0  (321)
A highly durable, medium build, solvent-borne exterior woodstain that provides a highly translucent, UV resistant, satin finish. Suitable for garden sheds and other wooden structures.
  • 2 coats
  • 16m² per litre
  • 16 hrs drying time
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Available in 1L, 2.5L, 5L
  4.3/5.0  (159)
A biodegradable, odour-free wood cleaner for restoring the natural character of sun-bleached or weather damaged wood.Suitable for wooden sheds and garden furniture.
  • 1-2 coats
  • 10m² per litre
  • 20 mins drying time
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Available in 500ml, 2.5L, 5L, 10L
  4.9/5.0  (152)
A solvent-based, wax free wood preservative for wooden sheds, fence panels and other garden wood. Offers protection against wood rot, fungi, decay and mould. Can be over-painted with solvent, oil and water-based paints and wood care treatments.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
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Available in 1L, 5L
  5.0/5.0  (72)
A strong, fast drying two-part wood filler suitable for exterior wood including sheds and other garden structures. Available in a range of shades that can be left as is or stained.
  • 30 mins drying time
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Available in 275g, 550g, 1kg
  4.6/5.0  (116)
A 100mm (4 inch) brush that is designed to cover large areas quickly, perfect for areas such as garden sheds and fence panels.
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Available in 4" (100mm)
  4.2/5.0  (75)
A large synthetic bristle brush for the application of paint, oils and preservers to sheds, decking and fences. Gives a smooth, professional finish with minimal effort.
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Available in 120mm
  4.9/5.0  (161)
An exterior water-based wood stain that colours and weatherproofs garden sheds and fence panels for up to 5 years. Non-drip and water repellent.
  • 2 coats
  • 5m² per litre
  • 4 hrs drying time
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Available in 1L, 4L