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Decking Treatment

The perfect way to treat, weatherproof, and protect garden decking

These decking treatments are designed to keep wood decking in tip-top condition all-year-round, whilst protecting against weathering, wear, mould, and algae. Choose from our range of top brand decking oil, decking stain, and decking paint products to renovate, rejuvenate, and restore garden decking.

Don't forget the all-important decking cleaning and maintenance schedule! From decking preservers to decking cleaners and restorers, we have everything needed for day-to-day cleaning, or as part of a decking preparation process, prior to applying a decking finish.

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Displaying 47 products

Recommended Special Offer
Ronseal Ultimate Protection Decking Oil
Ronseal Ultimate Protection Decking Oil
  4.8/5.0  (1132)
£26.47 - £35.09 Was £29.41 - £38.99
Save 10%
Offers superior decking protection and lasts up to twice as long as Ronseal's original decking oil formula. Rainproof in 90 minutes, water-based formula.
  • 2 coats
  • 9m² per litre
  • 24 hrs drying time
More info
Available in 2.5L, 5L
Recommended Special Offer
Barrettine Decking Oil
Barrettine Decking Oil
  4.9/5.0  (1176)
£23.65 - £31.61 Was £23.65 - £37.19
Save up to 15%
An advanced formulation decking oil with excellent water resistance that both protects and enhances wooden decking. Available in clear and a range of attractive wood tone colours.
  • 1-2 coats
  • 8m² per litre
  • 12 hrs drying time
More info
Available in 2.5L, 5L
Recommended Special Offer
Osmo Decking Oil
Osmo Decking Oil
  4.8/5.0  (248)
£1.55 - £68.05
Save up to 5%
A premium grade decking oil for all softwood and hardwood decking. Feeds and nourishes garden decking timbers to prevent cracking, warping and splitting. Available in clear and coloured finishes that dry to a satin-matt finish.
  • 2 coats
  • 24m² per litre
  • 12 hrs drying time
More info
Available in 5ml sample, 125ml, 750ml, 2.5L
Recommended
Manns Premier UV Decking Oil
Manns Premier UV Decking Oil
  4.9/5.0  (390)
£38.99
A multi-purpose, solvent-based decking oil treatment for use on both softwood and hardwood decking. Protects against weathering and UV damage. Deep penetrating formula reduces the risk of timber cracking, splitting and warping.
  • 2 coats
  • 8m² per litre
  • 12 hrs drying time
More info
Available in 5L
Barrettine Premier Wood Preserver
Barrettine Premier Wood Preserver
  4.9/5.0  (2949)
£16.30 - £40.33
A solvent-based wood preservative that offers microporous protection against wood rot, fungi, decay and mould. Available in clear and coloured formulations suitable for wooden decking and other garden wood.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
More info
Available in 1L, 5L
Special Offer
Cuprinol Anti-Slip Decking Stain
Cuprinol Anti-Slip Decking Stain
  4.9/5.0  (780)
£17.67 - £33.67 Was £18.60 - £33.67
Save up to 5%
A water-based decking stain for all softwood and hardwood decking. Unique double action formulation which provides lasting weather protection with anti-slip properties to make garden decking safer.
  • 2-3 coats
  • 12m² per litre
  • 4 hrs drying time
More info
Available in 2.5L, 5L
Special Offer
Ronseal Ultimate Protection Decking Stain
Ronseal Ultimate Protection Decking Stain
  4.8/5.0  (379)
£20.84 - £34.01 Was £24.52 - £40.01
Save 15%
A long lasting, water-based decking stain and protective treatment for garden decking. Rainproof in 90 minutes. Dries to a tough, durable finish.
  • 2 coats
  • 8m² per litre
  • 4 hrs drying time
More info
Available in 2.5L, 5L
Ronseal Total Wood Preservative
Ronseal Total Wood Preservative
  5.0/5.0  (305)
£35.67
A complete, solvent-based wood preservative from Ronseal. Can be used on new, bare wood or recently stripped decking to prevent rot, decay and woodworm prior to applying a decking treatment.
  • 3 coats
  • 8m² per litre
  • 24 hrs drying time
More info
Available in 5L
Special Offer
Ronseal Decking Protector
Ronseal Decking Protector
  5.0/5.0  (136)
£24.92 Was £29.32
Save 15%
An all-in-one, water-based, protective decking treatment. Wax-enriched formula provides excellent water repellency. UV-resistant to protect the colour of decking for longer.
  • 2 coats
  • 6m² per litre
  • 1h 30m drying time
More info
Available in 5L
Cuprinol UV Guard Decking Oil
Cuprinol UV Guard Decking Oil
  4.9/5.0  (138)
£21.60 - £33.82
A water-based decking oil for softwood and hardwood decking. Deep penetrating formula replaces natural oils lost through weathering. UV-resistant and available in a range of colours.
  • 2 coats
  • 10m² per litre
  • 6 hrs drying time
More info
Available in 2.5L, 5L
Osmo Wood Reviver Gel
Osmo Wood Reviver Power Gel (6609)
  4.3/5.0  (158)
£8.71 - £146.36
A biodegradable, odour-free cleaner to remove greying and restore the natural character of sun-bleached or weather damaged wood. Can be used to restore the colour of decking timbers prior to treating with a decking oil or stain.
  • 1-2 coats
  • 10m² per litre
  • 20 mins drying time
More info
Available in 500ml, 2.5L, 5L, 10L
Barrettine Premier Universal Preserver
Barrettine Premier Universal Preserver
  4.9/5.0  (152)
£14.40 - £36.19
An all purpose, solvent-based wood preservative. Wax-free, low odour formulation protects against wood rot, fungi, decay and mould. Ideal for garden decking prior to applying a decking oil or stain.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
More info
Available in 1L, 5L
Liberon Superior Decking Oil
Liberon Superior Decking Oil
  4.9/5.0  (78)
£27.99 - £39.99
A high quality, solvent-based decking oil that protects and revives both old and new timber decking. Revives weathered and greying decking, and is water and UV-resistant.
  • 2 coats
  • 10m² per litre
  • 24 hrs drying time
More info
Available in 2.5L, 5L
Osmo Anti Slip Decking Oil (430)
Osmo Anti Slip Decking Oil (430)
  5.0/5.0  (100)
£11.80 - £82.07
A high quality, anti-slip decking oil for all garden decking. Offers durable, year round performance. Dries to a tough, clear, satin-matt finish.
  • 1 coat
  • 24m² per litre
  • 10 hrs drying time
More info
Available in 125ml, 750ml, 2.5L
Fungicidal Wash (Multicide)
Barrettine Mould and Mildew Cleaner
  4.5/5.0  (99)
£12.41
An effective multicide, fungicidal wash for the control of mould, algae and fungi. Ideal for the cleaning and restoration of old or neglected decking. Use as a pre-treatment on bare wood or stripped decking prior to applying a decking oil or stain.
  • 1-2 coats
  • 10m² per litre
  • 24 hrs drying time
More info
Available in 4L
Ronseal Decking Cleaner and Reviver
Ronseal Decking Cleaner and Reviver
  4.3/5.0  (59)
£12.78
Revives old, weathered decking. Removes moss, mould and algae. Prepares decking prior to applying a decking treatment, such as a decking oil or stain.
  • 4m² per litre
  • 15 mins drying time
More info
Available in 5L
Ronseal Ultimate Protection Decking Paint
Ronseal Ultimate Protection Decking Paint
  4.8/5.0  (64)
£30.17 - £46.67
A water-based decking paint for softwood and hardwood decking. Provides vibrant colour and lasting protection to old and new decking.
  • 2 coats
  • 8m² per litre
  • 4 hrs drying time
More info
Available in 2.5L, 5L
Special Offer
Cuprinol Wood Preserver Clear
Cuprinol Wood Preserver Clear
  4.7/5.0  (16)
£15.11 - £39.21 Was £15.11 - £46.13
Save up to 15%
A clear, water-based wood preservative treatment for interior and exterior timber. Prevents insect attack, rot and decay.
  • 2 coats
  • 5m² per litre
  • 16 hrs drying time
More info
Available in 1L, 5L
Liberon Extreme Decking Paint
Liberon Extreme Decking Paint
  4.9/5.0  (24)
£29.15
A decorative, water-based decking paint for all wooden decking. Ideal for use on old and worn garden decking boards. Colours, protects and prevents wood degeneration by repelling water and protecting against UV damage.
  • 2 coats
  • 10m² per litre
  • 8 hrs drying time
More info
Available in 2.5L
Osmo End Grain Sealing Wax thumb
Osmo End Grain Sealing Wax (5735)
  5.0/5.0  (31)
£20.31
Protects sawn ends of decking boards by sealing and protecting them from the elements. Helps to prevent wood swelling and shrinkage.
  • 2 coats
  • 5m² per litre
  • 4 hrs drying time
More info
Available in 375ml
Decking and Patio Cleaner
Barrettine Driveway, Decking and Patio Cleaner
  4.2/5.0  (43)
£10.45
A water-based cleaner that keeps mould, algae and fungi under control.
  • 1-2 coats
  • 4m² per litre
  • 24 hrs drying time
More info
Available in 4L
Barrettine Anti-Slip Decking Oil
Barrettine Anti-Slip Decking Oil
  4.8/5.0  (35)
£30.28 - £44.45
A premium quality decking oil which incorporates anti-slip technology to improve grip on decking boards, handrails, wooden steps and other exterior wood surfaces.
  • 1 coat
  • 17m² per litre
  • 48 hrs drying time
More info
Available in 2.5L, 5L
Osmo Decking Cleaner (8025)
Osmo Decking Cleaner (8025)
  4.2/5.0  (18)
£12.51 - £50.22
A concentrated decking cleaner for use on untreated or oiled wooden decking. Effectively removes dirt and stains from decking boards.
  • 1-2 coats
  • 100m² per litre
  • 30 mins drying time
More info
Available in 1L, 5L
Cuprinol Decking Cleaner
Cuprinol Decking Cleaner
  4.6/5.0  (21)
£13.78
An effective anti-algae decking cleaner for softwood and hardwood decking. Contains powerful detergents, specially formulated to remove dirt, grease, algae and mould from garden decking.
  • 1 coat
  • 5m² per litre
  • 1 hr drying time
More info
Available in 2.5L
Holzol Decking Oil
Holzol Decking Oil
  4.4/5.0  (19)
£8.39 - £54.43
A trade quality decking oil for use on all wooden decking. Made from a unique blend of natural oils modified with urethane resin and enriched with UV filters to reduce greying. Available in clear and a range of vibrant colours.
  • 2 coats
  • 22m² per litre
  • 10 hrs drying time
More info
Available in 100ml, 2.5L
Ronseal Decking Stripper
Ronseal Decking Stripper
  3.5/5.0  (6)
£36.90
Specially formulated decking stripper for the removal of decking stains and decking oils prior to re-finishing. Works in just 30 minutes.
  • 1 coat
  • 5m² per litre
  • 30 mins drying time
More info
Available in 2.5L
Ronseal Decking End Grain Protector
Ronseal Decking End Grain Protector
  5.0/5.0  (10)
£14.64
Waterproofs and protects cross cut end grains on decking against water damage which can lead to rot and decay. Rainproof in 90 minutes.
  • 2 coats
  • 8m² per litre
  • 24 hrs drying time
More info
Available in 750ml
Barrettine Mould Stain Cleaner Spray
Barrettine Mould Stain Cleaner Spray
  4.1/5.0  (6)
£8.77
An effective spray for the control of mould spores, algae and fungi. Ideal for localised areas that need attention. Handy trigger spray bottle for easy application.
  • 1-2 coats
  • 4m² per litre
  • 24 hrs drying time
More info
Available in 500ml
Barrettine End Grain Preserver
Barrettine End Grain Preserver
  5.0/5.0  (8)
£24.55
A solvent-based end grain preserver which deeply penetrates to protect against wood boring insects, wood rotting fungi and blue stain.
  • 2 coats
  • 5.5m² per litre
  • 24 hrs drying time
More info
Available in 1L
Ronseal Multi Purpose Wood Treatment
Ronseal Multi Purpose Wood Treatment
  4.4/5.0  (9)
£26.66 - £35.46
A clear, multi-purpose, solvent-based wood preservative that provides protection against wet rot, dry rot, woodworm and insect attack. Ideal for a variety of projects including garden decking.
  • 3 coats
  • 6m² per litre
  • 24 hrs drying time
More info
Available in 2.5L, 5L
Ronseal Decking Restorer
Ronseal Decking Restorer
  4.8/5.0  (3)
£23.33
A specifically designed decking restorer for weathered or grey decking. Suitable for ridged, smooth, softwood and hardwood decking. Revives and cleans wooden decking back to its natural appearance.
  • 1 coat
  • 15m² per litre
  • 20 mins drying time
More info
Available in 2.5L
Ronseal Woodworm Killer
Ronseal Woodworm Killer
  5.0/5.0  (8)
£20.94 - £33.84
An effective, water-based woodworm killer that penetrates deep into the wood to kill wood boring insects, their larvae and eggs. Suitable for a wide range of interior and exterior projects including decking joists and boards.
  • 3 coats
  • 10m² per litre
  • 2 hrs drying time
More info
Available in 1L, 5L
Cuprinol Total Deck
Cuprinol Total Deck
  5.0/5.0  (14)
£33.65 - £47.21
A clear, all-in-one, water-based decking oil and restorer for all softwood and hardwood decking. Restores grey and weathered decking in just one coat.
  • 1 coat
  • 9m² per litre
  • 5 hrs drying time
More info
Available in 2.5L, 5L
Liberon Anti-Slip Coating
Liberon Anti-Slip Coating
  5.0/5.0  (4)
£20.42 - £50.66
A clear coating suitable for use on cement, stone and wood surfaces. Ideal for patios, decking, utility rooms and swimming pools.
  • 2 coats
  • 12m² per litre
  • 12 hrs drying time
More info
Available in 1L, 2.5L
Barrettine Wood Reviver
Barrettine Wood Reviver
  4.7/5.0  (9)
£12.38 - £50.54
Water-based restoration treatment for cleaning and restoring wood damaged by weather and UV rays. Suitable for all wood types.
  • 1 coat
  • 4m² per litre
  • 15 mins drying time
More info
Available in 1L, 5L
Ronseal Quick Drying Decking Stain
Ronseal Quick Drying Decking Stain
  4.6/5.0  (4)
£22.14 - £44.35
A quick drying, water-based decking stain that colours and protects softwood and hardwood decking.
  • 2 coats
  • 10m² per litre
  • 1 hr drying time
More info
Available in 2.5L, 5L
Liberon Tough Deck Clean and Revive
Liberon Tough Deck Clean and Revive
  4.1/5.0  (3)
£17.91
An effective cleaning solution for use on old and soiled wooden decking which has dulled and faded over time.
  • 1 coat
  • 30m² per litre
  • 24 hrs drying time
More info
Available in 2L
Protek Decking Stain
Protek Decking Stain
  5.0/5.0  (4)
£35.64
Enriches decking, whilst offering great waterproof protection. For all exterior wood. Child, pet and plant friendly when dry.
  • 2 coats
  • 10m² per litre
  • 2 hrs drying time
More info
Available in 2.5L
Osmo Polymer Composite Cleaner (8021)
Osmo Polymer Composite Cleaner (8021)
£19.87
A lightly alkaline-based intensive cleaner for composite decking. Removes organic and inorganic dirt and stains from WPC and BPC decking boards.
  • 50m² per litre
More info
Available in 1L
Barrettine Super Concentrated Decking Cleaner
Barrettine Super Concentrated Decking Cleaner
  4.2/5.0  (9)
£9.65
A highly concentrated decking cleaner that cleans and maintains all types of garden decking and furniture.
  • 1-2 coats
  • 40m² per litre
More info
Available in 500ml
Sadolin Beautiflex
Sadolin Beautiflex
  4.9/5.0  (3)
£48.44
A solvent-based, opaque wood stain for all exterior wood, including garden decking. Highly durable and flexible. Water and UV-resistant.
  • 2-3 coats
  • 15m² per litre
  • 20 hrs drying time
More info
Available in 2.5L
Ciranova Exterior Wood Oil
Ciranova Exterior Wood Oil
£75.99 - £79.99
A high-performance wood oil designed to protect and enhance exterior wooden surfaces.
  • 2 coats
  • 10m² per litre
  • 4 hrs drying time
More info
Available in 2.5L
Liberon Superior Decking Stain
Liberon Superior Decking Stain
  5.0/5.0  (2)
£26.99 - £38.49
A quick-drying, easy to apply decking stain with anti-slip properties
  • 2 coats
  • 12m² per litre
  • 24 hrs drying time
More info
Available in 2.5L, 5L
Osmo Polymer Composite Maintenance Oil
Osmo Polymer Composite Maintenance Oil
  4.8/5.0  (6)
£27.29
Ideal protection against dirt and stains
  • 2 coats
  • 40m² per litre
  • 10 hrs drying time
More info
Available in 1L
Ronseal Quick Drying Decking Oil
Ronseal Quick Drying Decking Oil
  5.0/5.0  (2105)
£29.99 - £35.99
A protective decking oil that nourishes and protects soft and hardwood decking. Available in natural and a range of lightly tinted wood shades to enhance wooden decks.
  • 2 coats
  • 9.5m² per litre
  • 1h 30m drying time
More info
Available in 2.5L, 5L
Sadolin Decking Oil
Sadolin Decking Oil
  2.3/5.0  (3)
£29.66
A high quality decking oil for use on all wooden garden decking. Replaces natural oils lost through weathering. Provides excellent weather protection. It is resistant to mould and algae, and contains UV-active technology.
  • 1-2 coats
  • 15m² per litre
  • 16 hrs drying time
More info
Available in 2.5L
Sadolin Wet Wood Decking Stain
Sadolin Wet Wood Decking Stain
  5.0/5.0  (3)
£28.25
A water-based decking stain that can be applied directly onto wet wood and resists peeling and flaking
  • 3 coats
  • 10m² per litre
  • 6 hrs drying time
More info
Available in 2.5L