Post caps

Why are post caps so important for wooden fences?

Wood is a natural material that ‘expands and contracts’. The greatest weak point of any wooden post is the top end, known as the end grain. This is where the tree’s capillaries are open – much like a straw.

Without a fence post cap, rainwater penetrates unhindered into the interior of the post. The water accumulates, freezes in winter and creates a warm, damp environment in summer. The result: the wood rots from the inside out, mould forms and the post becomes unstable. A high-quality post cap acts like a roof: it safely channels water away and extends the life of your fence by many years.

Guide: Frequently asked questions about post caps (FAQ)

Here we answer the most important questions about selection and installation.

➔ Which post cap fits my post?

A precise fit is crucial. Measure the top of your wooden post accurately. Our caps are designed to have minimal play so they can be easily slipped on but sit securely.

• Post cap 7x7 cm (71x71 mm): Ideal for lightweight fences, front garden fences and hunter’s fences.
• Post cap 9 x 9 cm (91 x 91 mm): The standard choice for privacy fences, pergolas and carports.
• Post cap 10x10 cm (101x101 mm): For sturdier structures and gate posts.
• Post cap 12x12 cm (121x121 mm): For solid timber posts, often used for heavy-duty carports or patio canopies.

➔ Which material is best for me?

We stock three high-quality variants which, unlike plastic, are extremely durable and shatterproof:

• V2A stainless steel: The premium solution. You can choose between polished (glossy) or brushed (matt). Stainless steel does not rust and still looks as good as new even after years of use – perfect for modern architecture.
• Hot-dip galvanised steel: The best value for money. The galvanisation makes the steel extremely resistant to corrosion. This rustic look goes perfectly with classic wooden fences in a country-house style.
• Anthracite (RAL 7016): The trendsetter. These caps are powder-coated and match perfectly in colour with modern double-bar fencing or dark-painted wood.

➔ How are post caps fitted?

Installation is incredibly simple and can be done quickly, even by those with no experience. Our caps have two drill holes on the sides. Slide the cap onto the post and screw it securely in place at the sides using suitable screws (preferably sheet metal screws or stainless steel screws).

Pro tip: Do not seal the cap completely with silicone! A small air gap is important so that any condensation that may form can evaporate again (‘chimney effect’). Securing the cap with screws at the sides is entirely sufficient to ensure a secure hold.

➔ What does ‘pyramid shape’ mean?

Most of our caps have a pyramid shape. This isn’t just a design choice, but has a technical reason: the sloping sides allow rainwater and snow to run off immediately in all four directions. No water remains pooled on the cap.