Installing Concrete Fence Posts
Concrete fence posts are only suitable for fixing into the ground in the traditional way by digging a hole. Metposts cannot be used with this product. When concreting fence posts into the ground the posts should be buried a minimum of 600mm deep the recommended depth for a 1.80m or 6 foot high fence is 760mm or two foot six inches.
Concrete fence posts can be installed with either a mixture of ballast and cement or postfix. The amount required of either product depends on the size of the hole that is dug for the fence post.
Concrete slotted fence posts are used with fence panels and these are slotted along their whole length to aid stepping on slopping ground. Note. No fixings are required to fix fence panels when using slotted fence posts.
Concrete posts are also available for chainlink and mesh fencing.
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Installing Concrete Gravel BoardsPanel fencing - concrete gravel boards that are used with panel fencing are simply slotted into the slotted posts. These can then be bedded into the concrete used to fix the fence posts to keep them level.
Closeboard fencing - concrete gravel boards that are used with morticed posts for closeboard fencing are attached using metal two pin push-in cleats. The cleats simply slot into the fence post using two holes located near the bottom of the fence post and then the gravel board is bolted onto the cleat, usually using M8x80 or M10x80 bolts. Some concrete fence posts have four holes is to allow a choice of position for the gravel board to be fixed onto the post.
Because of the longer length of this type gravel board 2.885 metres, care should be taken during handling to avoid cracking. Once installed the gravel board centre is supported by a centre stump, which is attached by a coach screw and washer through a hole in the gravel board. The centre stump also attaches to the bottom arris rail, giving the whole structure rigidity.
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Stepping- Fence posts are always erected so that the top of the fence panel runs level. However, If the ground slopes, the fence panels will need stepping and therefore there will be a triangular gap beneath the fence panel. If the garden fence is designed to contain pets, then the gap can be filled with a gravel board to stop up the gap.
During installation of your new fence you will find it easier to start at the top of any slope and work down hill. This helps with getting the height of the fence post correct.