Description
Quick answer: Fence post caps are timber caps fitted to the top of wooden fence posts to give the post a neater finished look and help reduce water entering the exposed end grain. They are suitable for external garden fencing, boundary fences, landscaping projects and decorative timber fence installations.
What is this used for?
Fence post caps are used to finish the top of timber fence posts. They help improve the appearance of a fence run while also helping protect the top of the post from rainwater sitting directly on the exposed timber end grain.
Typical uses include garden fencing, boundary fencing, decorative fencing, landscaping features, replacement fence post caps and finishing new timber fence installations.
Is this the right post cap for your project?
Choose a fence post cap when you want a simple, tidy finish on top of a timber fence post. Post caps are a small finishing detail, but they can make a fence look more complete while helping reduce water ingress into the top of the post.
These caps are designed for timber fence posts. Make sure you choose the correct cap size and style for your post before ordering.
Which style should you choose?
These fence post caps are available in square top and ball top styles. Square top caps give a simple, clean finish, while ball top caps create a more decorative look.
| Option | Best used for |
|---|---|
| 3x3 inch square top | For standard 3x3 inch timber fence posts where a simple square cap is wanted. |
| 4x4 inch square top | For 4x4 inch timber fence posts where a clean, plain top finish is wanted. |
| 4x4 inch ball top | For 4x4 inch timber fence posts where a more decorative finish is preferred. |
Size note: Imperial sizes are provided as a familiar reference only. All timber and related products are sold using metric measurements where listed, so please check the actual product option and post size before ordering.
How do fence post caps help?
The top of a timber fence post exposes end grain, which can absorb water more easily than the side of the post. A fence post cap helps cover this exposed area, reducing direct rainwater contact and giving the post a more finished appearance.
Post caps are not a substitute for proper timber treatment, correct installation or normal maintenance, but they are a useful finishing accessory for timber fencing.
Key features
- Decorative finish: Helps give timber fence posts a neat, completed look.
- Helps protect end grain: Covers the exposed top of the post to help reduce water ingress.
- Timber construction: Suitable for use with wooden fence posts.
- External fencing use: Designed for garden fencing, boundary fencing and landscaping projects.
- Multiple styles available: Choose from square top and ball top options depending on the look you want.
- Simple to fit: Can be fixed to the top of the post using suitable exterior-grade nails or screws.
Things to check before ordering
- Post size: Check whether your post is 3x3 inch or 4x4 inch before choosing the cap.
- Style: Choose square top for a simple finish or ball top for a more decorative look.
- Fit: The cap should sit centrally and flush on top of the post.
- Fixings: Use suitable exterior-grade nails or screws for outdoor timber use.
- Maintenance: Timber post caps may need periodic maintenance or treatment to extend service life.
- Post condition: If fitting to existing posts, check the post top is sound, clean and suitable before fixing the cap.
Complete the job
For a new fence installation, use fence post caps with suitable fence posts, fixings and postmix, and the correct fence materials for your build.
For featheredge fencing, you may also need featheredge boards, motorway rails and gravel boards. To plan a full featheredge fence before ordering, use the Featheredge Fencing Calculator.
