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Pier caps provide the essential finishing touch to gate posts, pillars, and decorative brick or block piers, protecting the exposed top surface from water ingress, frost damage, and general weathering. Without a proper cap, the open top of a pier is one of the most vulnerable points in any masonry structure — water sits on the surface, works into the mortar joints, and accelerates deterioration over time. A well-fitted precast cap channels water clear of the pier head and keeps the structure looking clean and finished for years to come.
McMahons currently stocks a precast concrete pier cap in a 550x550mm size, suitable for finishing standard gate posts and decorative masonry piers. Described as a high-quality alternative to site-cast concrete cappings, this precast unit offers consistent dimensions and a ready-to-install finish, saving time compared to forming and casting on site. With strong stock availability, it is available for immediate collection from branch or delivery to site.
For complementary products, browse our Concrete Wall Caps range for coping solutions across garden walls and boundary walls, or explore our full Lintels & Cills collection for concrete cills, galvanised lintels, and other masonry finishing products.
When selecting a pier cap, ensure the cap size gives an adequate overhang on all four sides of the pier head - typically around 25mm per side - to direct water clear of the brickwork or blockwork face below. The 550x550mm cap suits piers built on a standard 440mm block or equivalent brick pier construction.
With nearly two centuries serving Irish builders and homeowners, McMahons understands that the finishing details matter as much as the structural ones. Our knowledgeable branch staff can advise on the right capping and coping products for your project. Find your nearest McMahons branch for expert guidance and competitive pricing.
