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Sale ends in: 23:59 on Monday 30 November

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Sale terms

Black Friday: 20% off from 00:00 Tue 10 Nov to 23:59 Mon 30 Nov 2026 (UK time). No code needed. Samples are not included. Crossed-out prices show the RRP, or our previous selling price where labelled "Was". While stocks last.

Galvanised Steel Fence Post Insert 1.2m
Galvanised Steel Fence Post Insert 1.2m

Galvanised Steel Fence Post Insert 1.2m

Galvanised Steel Fence Post Insert 1.2m

£19.99Was £24.99

inc VAT

£19.99 RRP £24.99 inc VAT

Save£5.00

Sale ends in17d19h02m29s

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Quantity

1 × £19.99 = £19.99

Total with deliveryinc VAT

£69.99

Includes £50.00 delivery, in 1⁠–⁠5 working days. Free from £500.

Why our flat fencing?

ONE BOX, ONE SECTION

The flat fencing kit holds the slats, rails, caps and post for a complete 1.8m section.

NO PAINTING OR TREATING

The co-extruded woodgrain resists fading, warping and splintering, so there's nothing to repaint.

A GATE THAT MATCHES

The gate kit is built from woodgrain composite fence boards on a powder-coated aluminium frame, with lock and hinges included.

KLARNA PAY IN 3

Want to split the cost over 3 months and pay zero interest? Be our guest.

Buying from us, and what happens next.

How delivery works and what it costs, and what can come back.

  1. You orderFencing and parts in one basket.
  2. The day beforeWe call you to arrange delivery.
  3. An hour beforeWe call you again.
  4. Delivered to your door
1⁠–⁠5working days

Delivered to your door

£50 on orders under £500; free from £500. The charge shows in your total, never only at checkout.

  • Check before you fit. Photograph everything and tell us about any damage.
14days

Returns

Changed your mind? Return your order in its original condition, and its packaging where possible, within 14 days of receiving it for a full refund.

The part, in detail.

About this product

A 1.2m galvanised steel insert that lets you bolt 100mm x 100mm composite fence posts straight onto concrete, paving or masonry. It sits hidden inside the post, adding strength where digging post holes is impractical, such as patios, driveways and courtyards.

Performance

  • Galvanised finish resists corrosion in all weathers
  • Adds strength and stability without unnecessary weight
  • Concealed inside the post for a clean finish
  • Suitable for domestic and commercial fencing

Installation

Fix the base plate to a solid surface with suitable ground anchor bolts (not included), then slide the composite post over the insert.

Pairs with

  • 100mm x 100mm composite fence posts

For trade enquiries or bulk orders, call us on 0161 509 8637.

SpecificationFull specification
Specification
Insert length1.2m
Steel profile40mm x 40mm
Materialcold-rolled galvanised steel
Compatible post size100mm x 100mm composite fence posts
Basepre-welded bolt-down plate

Your questions, answered.

The questions people ask us before they buy. Anything else: 0161 509 8637.

What's in the flat fencing kit?

Nine 20.7cm x 1.8m x 2cm co-extrusion flat slats, a top and bottom rail, top and bottom caps, and one post in your chosen option. Composite posts also come with a matching finishing strip.

How many kits do I need?

One kit per 1.8m section. Each kit includes one post, so add one extra post kit to finish the end of the run.

Do the aluminium top and bottom rails fit the flat kit?

No. They're made for our standard composite woodgrain fence boards. The flat and slatted ranges use their own top and bottom rail system, which comes in the kit.

Can I fit composite boards between my existing concrete posts?

Yes, with standard woodgrain fence boards and our composite U-channels. The aluminium top and bottom rails work with this method too.

What's in the gate kit?

The woodgrain composite gate, adjustable top and bottom hinges, lock case, handle set, key cylinder and keys, strike plate, door stop, and stainless steel fixings. Gate posts aren't included. Compatible powder-coated aluminium gate posts are sold separately.

How tall is the gate once it's up?

The gate is 1753mm high and 950mm wide (+5mm tolerance). Installed height is approximately 1930mm, not counting the part of the post below ground.

Can I put fence posts on a patio or driveway?

Yes, with the galvanised steel post insert. Fix its base plate to concrete, paving or masonry with suitable ground anchor bolts (not included), then slide the 100mm x 100mm composite post over it.

How do I clean the gate?

With warm soapy water and a soft brush. There's nothing to paint, stain or treat.