A pack of treated 100mm x 100mm fence posts.
A pack of treated 100mm x 100mm fence posts.
Packs of 10cm x 10cm UC4 posts waiting to be mortised.
Packs of 10cm x 10cm UC4 posts
End view of square treated softwood posts
End view of square treated softwood posts
A round top 10cm x 10cm treated softwood post
A round top 10cm x 10cm treated softwood post
A pack of treated 100mm x 100mm fence posts.
Packs of 10cm x 10cm UC4 posts waiting to be mortised.
End view of square treated softwood posts
A round top 10cm x 10cm treated softwood post

Crestala Fencing Centre

100mm x 100mm (4in x 4in) Treated Timber Fence Posts

We stock a large selection of treated 10cm (4") x 10cm (4") softwood posts in heights from 1,5m (5ft) up to 3.6m (12ft). These posts are pressure-treated to UC4 for in-ground use.

All posts have square ends (flat) as standard, unless stated otherwise. Other Post Tops (post weathers) can be added on request.
As round-top posts are very popular, we offer some lengths of 100 x 100mm posts with round tops, ready for collection.
100 x 100mm posts can have corner (edge) chamfering and/or router lines added if desired. Please use the Made to Measure Sizes section below to request a quote.


Size: Post 1.5m x 100 x 100.
£12.96
Tax included.

Pickup available at Crestala Fencing Centre

Key Features
  • Our 100 x 100mm sawn softwood posts are treated with the latest-generation preservatives to UC4 standard..
  • Suitable for use as Fence or Gate posts.
Made To Measure Sizes
We can shorten posts or add post tops to order. Please contact our Sales Team for a quote and availability. Contact Us
Anticipated Lead Time
Plain posts instock. Tops and routering etc can usually be added within a few days, however .,if time is important please speak to a member of our team before ordering.
Product Specifications
Width (Metric):100 mm
Width (Imperial):4 in
Depth (Metric):100 mm
Depth (Imperial):4 in
Materials:Pressure treated softwood to UC 4 standard for in ground contact.
How to Use

Here's a bit more general information about our wooden Square Fence and Gate Posts.

Edge chamfering, different post tops, and router lines can be added to 100mm square posts if desired.

Protect the top of your post with a Metal post cap or a standard Wooden post cap.

If you can, we do recommend adding an extra treatment to any timber that is in contact with the ground, particularly from 100mm (4") above ground level to 450mm (18") below ground level. 
Installation Tips

For fencing, allow 600mm (2ft) in the ground up to 1.2m fence height. For fencing 1.35m (4ft-6ins) or over, exposed areas, or soft ground, we recommend increasing this to 750mm (2ft 6ins).

We have both fast-setting post mix and the more traditional Ballast and cement to make up a dry mix. Either of these options is suitable for securely fixing 10cm x 10cm posts in position.
Recommended Aftercare

Please read our Helpsheet on Looking After Pressure-treated Fencing.

To extend the life of the fence and gate posts, you may want to consider adding a timber treatment or wood preserver that can add extra protection to the part of the post going into the ground.
Product Helpsheets
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