Timber Post Extenders (H Block)

A quick, secure solution for raising existing fence height. Our timber H Block post extenders are easy to fit and pressure-treated for durability.

  • Made To Measure
  • Installation Service Available

Height

Price

1ft (305mm)

£4.00

2ft (600mm)

£8.00

3ft (900mm)

£12.00

Prices Include VAT

Timber H Block post extenders are a clever and cost-effective way to increase the height of existing timber fence posts without replacing them. Whether you’re adding trellis or taller panels, these extenders provide strong support and a clean finish.

Made from pressure-treated timber, they’re built to withstand outdoor conditions and can be painted or stained to match your fencing.

The H Block design ensures a secure fit between the original post and the new extension.

Ideal for enhancing privacy or adapting your garden fencing to new needs without the cost and disruption of a full replacement.

  • Raise fence height without replacing posts
  • Pressure-treated for long-lasting performance
  • Neat, secure H Block design
  • Ideal for adding trellis or panels
  • Quick and easy to install

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