How to Build a Fence with Concrete Posts & Panels

A durable garden fencing guide – from Wood Green Timber

Concrete post fencing is a no-nonsense, long-lasting option for gardens and boundaries. Once it’s in, it’s solid for years — and you can easily slot in new panels when needed.

Here’s how to install a fence using concrete posts and gravel boards with timber fence panels, all available from Wood Green Timber.

What You’ll Need

From Us:

• Concrete fence posts (intermediate & end posts)

• Concrete gravel boards

• Fence panels – Tylap (lap) or closeboard (featheredge)

• Post mix

• Optional: fence caps, trellis toppers, or panel clips

Tools:

• Spade or post hole digger

• Tape measure

• String line and pegs

• Level

• Spirit level or post level

• Rubber mallet

Step 1: Plan and Measure

• Mark your fence line with pegs and a tight string

• Decide how many bays you need — most fence panels are 1.83m (6ft) wide

• Mark post locations, allowing one concrete post between each panel

• Make sure you have clearance for panel height and gravel board

Step 2: Dig Post Holes

• Dig holes approx. 600mm deep and 300mm wide

• Start with your end post

• Use a level and string line to keep posts upright and in line

• Drop the post in and fill with post mix — tamp it in firmly

• Let it set for 5–10 minutes

Step 3: Add Gravel Boards

• Once your first post is set, slot in a concrete gravel board

• These keep timber panels off the ground and help prevent rot

• If your garden isn’t level, consider using stepped boards or cutting panels to suit

Step 4: Slot In the Fence Panels

• With the next post hole dug (and post still loose), slot your fence panel in between

• Use a rubber mallet or padding to tap it down gently into position

• Check the panel is level, then set the second post in post mix

• Repeat for each bay, working one panel at a time

Step 5: Add Finishing Touches

• Fit post caps or end trims if desired

• Add panel clips or brackets for extra wind protection

• Optional: finish the top of the fence with trellis panels

Why Go Concrete?

• No maintenance – won’t rot, warp or lean

• Great for windy or exposed sites

• Easy to swap out panels when needed

• Long-lasting with minimal upkeep

We’ve Got Everything In Stock

• Concrete posts (end, intermediate, corner)

• Concrete gravel boards (standard and recessed)

• Timber fence panels – lap and closeboard

• Post mix, caps, fixings and more

• Fast local delivery across North London and Hertfordshire

Need help working out quantities? Just give us your fence length — we’ll do the rest.

Wood Green Timber — solid products, proper advice, always happy to help.