Fence post cap 18×18 mm, black
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Black polyethylene Fence post cap for 18×18 mm square profiles. Internal dimension 18.0 mm, external dimension 21.6 mm, height 21.9 mm, depth 17.0 mm. Weight 0.0028 kg. Sold individually.
Product code: 002-961
Product features
[PIM] nasadka-na-slupek #163
- Post Profile Dimension [mm] 18x18
- Colour Black
Description
Fence post cap 18×18 mm, black

The black Fence post cap 18×18 mm provides a practical finish for the top of square posts and profiles of this size. Made from polyethylene, it closes off the open profile and gives the fence a neat, uniform appearance.
For installation companies, this is a simple finishing component for closing off profiles when installing fences, railings or lightweight structures made from square tubing. This type of cap protects the inside of the profile from dirt and rainwater, while its distinctive, slightly sloping top gives the post a neat finish.
Applications and selection
- Finishing 18×18 mm square fence posts
- Protecting the open ends of hollow profiles
- Neatly closing off structures in black
- Sold individually
Polyethylene is widely used to make caps and plugs: it is lightweight, moisture-resistant and easy to work with. Its low weight and compact size qualify the cap as a small parcel.

When selecting a cap, the key measurement is the internal dimension a, which corresponds to the size of the profile over which the cap is fitted. Depth h indicates how far the cap fits over the post, while external dimension A and height H describe the overall size of the fitted component. All values are given in the Dimensions table.
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