The 6ft (1.8m) concrete intermediate fence post is the straight-run post in a slotted panel-fencing system. Its 100 x 100mm profile accepts fencing from opposite sides, allowing one bay to continue directly into the next while the post keeps the run aligned.
Steel reinforcement is encased within wet-cast concrete to form the post. Vibration finishing produces three smooth faces out of four and the visible top is formed into a pyramid profile. This construction gives the fence a ground-fixed support that does not require timber preservative treatment to avoid rot where it enters the soil.
Inside the slot is a shoulder positioned around 600mm from the bottom. This is designed to support a concrete gravel board, helping create a consistent base and keeping the timber panel above away from direct ground contact. That support detail is useful when compatible concrete gravel boards form the base of the fence, because the board can sit at a consistent level beneath the panel.
Because every panel in a straight run depends on the intermediate posts being correctly spaced, small setting-out errors can accumulate over several bays. Measure from fixed points and check each new post against the panel or gravel-board width being installed.
The 6ft intermediate post adds 300mm over the shortest version and can suit lower-to-medium straight runs where that extra length is useful below ground or above it. It still needs to be matched to the whole fence build rather than selected from panel height alone, particularly on exposed or uneven sites. Choose an intermediate post only for a straight section of the boundary. Where the fence changes direction, ends, or splits into three runs, use the corresponding corner, end or 3-way post so the slots face the correct directions.
Set the straight run from a string line and measure centres from the actual panel or gravel-board width so small spacing errors do not accumulate over several bays. Keep the post plumb while the setting material cures. The fence post length calculator can help compare post lengths before digging, and an appropriate cement product should be used for the chosen ground-fixing method. The extra 300mm over the 5ft size gives more room to work with, but the post still needs to be selected around the actual finished height rather than a nominal panel description. The concrete fence posts range includes the same post roles in longer sizes. If the 1.8m length leaves little margin once the below-ground section is allowed for, choosing the next size up is normally more sensible than compromising the installation.
