Fence Posts, Rails & Caps

Fence posts, rails and caps form the structural backbone of any timber fence, providing the strength and stability needed to withstand Irish weather conditions year after year. Whether you're installing a new boundary fence, replacing storm-damaged posts, or building a decorative garden feature, selecting the right support components ensures your fencing remains upright, secure, and visually appealing for decades.

Our Fence Posts, Rails & Caps Collection

McMahons stocks a comprehensive selection of fencing support components to suit every installation requirement.

• Timber fence posts: pressure-treated softwood posts in various sizes for light garden fencing through to heavier boundary installations requiring greater structural strength.
• Arris rails: triangular profile rails that slot securely into morticed posts, providing robust horizontal support for featherboard and closeboard fencing panels.
• Fence post caps: decorative and protective tops in flat, ball, acorn and gothic styles that shed rainwater and prevent timber rot at vulnerable end grain.
• Concrete fence posts: maintenance-free alternatives offering exceptional longevity, particularly suited to exposed sites and ground-contact installations.
• Post repair spurs: practical solutions for salvaging fence posts with rotted bases, extending service life without the need for full post replacement.

Pair your structural components with our Fence Boards or Fence Panels to complete your project efficiently.

Consider ground conditions when choosing between pointed posts for driving and flat-bottomed posts for concrete fixing. For exposed coastal or hilltop sites, opt for thicker posts and closer spacing to handle wind loading effectively.

Why Choose McMahons for Your Fencing Framework?

With nearly two centuries serving Ireland's builders and landscapers, our team understands which post sizes, treatment levels, and fixing methods work best for local conditions. We stock fencing components from trusted suppliers, ensuring consistent quality whether you're ordering ten posts or a hundred. Browse our complete Fencing Supplies range, or set up a McMahons trade account for streamlined ordering and trade pricing on your regular fencing materials.