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Fencing Slats & Boards | Treated Timber for Garden & Boundary Fencing

Explore our range of fencing slats and boards, perfect for building strong, stylish, and long-lasting fences. Whether you’re creating a closeboard fence, slatted screen, or custom panel system, our treated timber boards are built to perform in UK weather conditions.

✅ Feather Edge Boards – ideal for traditional closeboard fencing
✅ Slatted Fence Battens – for modern horizontal or vertical designs
✅ Pressure-treated for outdoor durability
✅ Available in multiple lengths and thicknesses
✅ Compatible with timber and concrete posts, rails, and gravel boards

Trusted by landscapers, fencing contractors, and DIYers, our fencing boards are easy to install and available for nationwide delivery.

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100mm x 19mm (4"x3/4") Square sawn, fencing slat/board

Alter Supplies
£1.02 - £5.42
£1.02 - £5.42
£1.02
£0.92 - £4.80
£0.92 - £4.80
£0.92
In stock

100mm x 19mm (4"x3/4") Square Sawn Fencing Slat/Board Enhance the appeal and security of your outdoor space with our 100mm x 19mm square s...

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£1.02 - £5.42
£1.02 - £5.42
£1.02
£0.92 - £4.80
£0.92 - £4.80
£0.92
Save up to 34% Save %

2nd class slat 1.8M x 100 x 19 Slat

Alter Supplies
£1.00 - £1.00
£1.00
£1.00 - £1.00
£1.00
In stock

2nd class slat 1.8M x 100 x 19 Slat Enhance your fencing with our 2nd class fence slat, measuring 100mm x 19mm at a length of 1.8m. These pressure...

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£1.00 - £1.00
£1.00
£1.00 - £1.00
£1.00
Save 29% Save %

4.8M x 50 x 22 Green Treated rough sawn

Alter Supplies
£4.80
£4.80 - £4.80
£4.80
£3.43
£3.43 - £3.43
£3.43
In stock

Green Treated Rough Sawn Timber Batten Enhance your domestic projects with our 4.8-meter-long, 50mm x 22mm green treated rough sawn timber bat...

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£4.80
£4.80 - £4.80
£4.80
£3.43
£3.43 - £3.43
£3.43
Save 29% Save %

150 x 22 ( 6 x 7/8) Sarking Board

Alter Supplies
£5.94 - £7.92
£5.94 - £7.92
£5.94 - £7.92
£5.94
In stock

4.8M x 150 x 22 (16ft 6 x 7/8) Sarking Board Enhance your fencing or roofing projects with our 4.8-meter long sarking board. Crafted with pr...

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£5.94 - £7.92
£5.94 - £7.92
£5.94 - £7.92
£5.94

4.2M x 75 x 22 Sarking Boards (14ft 3 x 3/4 ) Slat

Alter Supplies
£4.19 - £4.19
£4.19
£4.19 - £4.19
£4.19
In stock

4.2M x 75 x 22 Sarking Boards (12ft 3 x 3/4 ) Slat Enhance your fencing with our 4.2M x 75 x 22 Sarking Boards. Crafted from high-quality, pressur...

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£4.19 - £4.19
£4.19
£4.19 - £4.19
£4.19
Save 17% Save %

1.8M x 100 x 19 (6ft 4 x 3/4) Fence Slat

Alter Supplies
£1.74
£1.74 - £1.74
£1.74
£1.44
£1.44 - £1.44
£1.44
In stock

1.8M x 100 x 19 (6ft 4 x 3/4) Fence Slat Upgrade your fence with the 1.8M x 100 x 19 Fence Slat, a top choice from Alter. Crafted with premium...

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£1.74
£1.74 - £1.74
£1.74
£1.44
£1.44 - £1.44
£1.44
Save 17% Save %

1.8m x 150mm x 22mm Green Treated Feather Edge Board - Finished 11 - 8mm

Alter Supplies
£1.80 - £1.80
£1.80
£1.80 - £1.80
£1.80
In stock

This 1.8m x 150mm  Green Treated feather edge is designed for a seamless and overlapping effect. With a gradual taper from 8mm to 11mm, this board ...

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£1.80 - £1.80
£1.80
£1.80 - £1.80
£1.80

2.4M x 100 x 19 (8ft 4 x 3/4) Slat

Alter Supplies
£2.64 - £2.64
£2.64
£2.64 - £2.64
£2.64
In stock

2.4M x 100 x 19 (8ft 4 x 3/4) Slat Enhance your space with the 2.4M x 100 x 19 (8ft 4 x 3/4) Slat. Crafted with precision and durability in mi...

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£2.64 - £2.64
£2.64
£2.64 - £2.64
£2.64

4.8M x 100 x 22 Sarking Boards (14ft 4 x 4/5) Slats or Straps

Alter Supplies
£5.04 - £5.04
£5.04
£5.04 - £5.04
£5.04
In stock

4.8M x 100 x 22 Sarking Boards (14ft 4 x 4/5) Slats or Straps Upgrade your construction projects with our versatile 4.8M x 100 x 22 sarking bo...

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£5.04 - £5.04
£5.04
£5.04 - £5.04
£5.04