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Fence Rails & Joists | Treated Timber for Fencing Support

Browse our range of fence rails and timber joists designed for supporting fencing panels, feather edge boards, and closeboard systems. All timber is pressure-treated for outdoor use, providing strength and durability in all weather conditions.

✅ Arris rails, cant rails & square fencing rails
✅ UC3 & UC4 treated timber for above and in-ground use
✅ Available in a variety of lengths and profiles
✅ Ideal for closeboard fencing, post and rail systems & agricultural fencing
✅ Strong, stable, and easy to fix to timber or concrete posts

Our fencing rails and joists are perfect for creating rigid, professional-grade fence structures, trusted by landscapers, fencing contractors, and homeowners alike. Nationwide delivery available.

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4.8m & 3.6m x 75mm x 38mm (3"x 1.5") Standard fence rail

£5.99 - £8.14
£5.99 - £8.14
£5.99
£5.16 - £6.89
£5.16 - £6.89
£5.16
In stock

75mm x 38mm standard fence rails @ Various lengths, pressure treated green, Square sawn. Used for the construction of slatted fencing. 3.6m, 4.8m l...

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£5.99 - £8.14
£5.99 - £8.14
£5.99
£5.16 - £6.89
£5.16 - £6.89
£5.16
Save up to 15% Save %
Save up to 13% Save %

100mm x 47mm (4"x2") joist, square sawn

£10.70 - £14.28
£10.70 - £14.28
£10.70
£9.29 - £12.38
£9.29 - £12.38
£9.29
In stock

100mm x 47mm (4"x2") Joist, Square Sawn Enhance your construction projects with our durable 100mm x 47mm joists, available in various lengths ...

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£10.70 - £14.28
£10.70 - £14.28
£10.70
£9.29 - £12.38
£9.29 - £12.38
£9.29
Save up to 13% Save %
Save 13% Save %

4.8M x 50 X 47 (16ft x 2 x 2) Sqaure Joist

£7.15
£7.15 - £7.15
£7.15
£6.19
£6.19 - £6.19
£6.19
In stock

4.8M x 50 X 47 (16ft x 2 x 2) Sqaure Joist Discover the perfect solution for your rail joist needs with our 4.8M x 50 X 47 (16ft x 2 x 2) Square J...

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£7.15
£7.15 - £7.15
£7.15
£6.19
£6.19 - £6.19
£6.19
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88mm x 38mm (3.5"x3/4") fence rail, square sawn -HCD

£7.69 - £10.64
£7.69 - £10.64
£7.69 - £10.64
£7.69
In stock

88mm x 38mm fence rails @ Various lengths, pressure treated green, Square sawn. Used for the construction of slatted fencing, horse arenas and timb...

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£7.69 - £10.64
£7.69 - £10.64
£7.69 - £10.64
£7.69
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100mm x 38mm (4"x3/4") Heavy duty fence rail, square sawn

£9.49
£9.49 - £9.49
£9.49
£8.03
£8.03 - £8.03
£8.03
In stock

100mm x 38mm (4"x3/4") Heavy Duty Fence Rail, Square Sawn Enhance the durability and strength of your fences with our 100mm x 38mm heavy d...

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£9.49
£9.49 - £9.49
£9.49
£8.03
£8.03 - £8.03
£8.03
Save 15% Save %
Save up to 17% Save %

150mm x 47mm (6"x2") Joist, square sawn

£16.07
£16.07 - £17.72
£16.07
£13.29 - £17.72
£13.29 - £17.72
£13.29
In stock

150mm x 47mm (6"x2") Joist, square sawn Enhance your construction projects with our 150mm x 47mm (6"x2") Joist, pressure treated in an att...

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£16.07
£16.07 - £17.72
£16.07
£13.29 - £17.72
£13.29 - £17.72
£13.29
Save up to 17% Save %

4.8M x 175 x 75 off saw

£32.25 - £32.25
£32.25
£32.25 - £32.25
£32.25
In stock

£32.25 - £32.25
£32.25
£32.25 - £32.25
£32.25

3.6m x 100mm half round rails

£9.90 - £9.90
£9.90
£9.90 - £9.90
£9.90
In stock

Crafted to industry standards, these 3.6m x 100mm half round treated fence rails are expertly machined for superior durability and strength. Perfec...

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£9.90 - £9.90
£9.90
£9.90 - £9.90
£9.90