100mm Fence Posts

Our 100mm fence posts offer long-lasting stability and can be suited to a wide range of applications.

With a thickness of 100mm (3.94 inches), they offer robustness yet remain easy to work with. Browse our selection online or visit a branch to discuss your requirements.

Shop Our 100 x 100 Fence Posts Sizing Variations

Explore our comprehensive range of 100mm fence post sizes at MGM Timber. We recognise that each project has unique demands, so we offer various sizes, including:

We have smaller fence posts in 75x75mm if you require a different size. Additionally, we feature a full selection of fence rails, fence slats, and fence accessories. Browse our offerings today.

Purchase 100mm Fence Posts Online or In-Store

Contact us today to find the perfect fencing supplies for your project. We also have 15 MGM Timber branches throughout Scotland. Locate your nearest store here.

CTP1001002400 100x100x2400mm Certified Softwood Sawn Square End Fence Post Treated
• Responsibly Sourced Softwood
• Treated for External Use
• Sawn Finish Fence Post

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£17.28 £14.40

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CTP1001003000 100x100x3000mm Certified Softwood Sawn Square End Fence Post Treated
• Responsibly Sourced Softwood
• Treated for External Use
• Sawn Finish Fence Post

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CTP1001001800 100x100x1800mm Softwood Sawn Square End Fence Post Treated
• Responsibly Sourced Softwood • Treated for External Use • Sawn Finish Fence Post

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£13.08 £10.90

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FAQS ABOUT 100MM FENCE POSTS

WHAT SIZE HOLE IS NEEDED FOR A 100MM POST?

For a 100mm post, it is recommended to dig a hole around 300mm square and at least one-third the post's length for stability.

SHOULD I USE 100MM OR 75MM FENCE POST?

Choose 100mm for greater stability in larger fences; 75mm is suitable for standard residential fencing. Consider your project's specific needs and contact us if you have any doubts.

HOW DEEP SHOULD 100MM FENCE POSTS BE BURIED?

It is recommended to bury 100mm fence posts at one-third to one-half their above-ground length for stability, e.g., roughly 800mm for a 100 x 2400mm length post.