How to Install Concrete Fence Posts & Gravel Boards

Fencing creates privacy, improves security and  helps shelter your garden from the elements. Garden fencing from AVS comes in a great selection of ready-made fence panels and timber and concrete posts. Here's how to make the most of concrete fence posts and gravel boards... 

The benefits of using concrete fence posts 

• Ready-made fence panels are a real boon to the DIY enthusiast. If you want your fence to last, as well as look good, concrete fence posts which last longer than timber posts.
• All our fencing panels will fit into the slotted posts. Slotted concrete fence posts mean if a fence panel gets damaged, you can lift it out and replace it with a new one without any hand tools.

Installing concrete fence posts
• Concrete fence posts must be fixed into the ground in the traditional way: by digging a hole. 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 2' 6".
• Use either a mixture of ballast and cement or Post Mix concrete to install concrete fence posts. 
• Concrete slotted fence posts are used with fence panels which 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.
• Morticed concrete posts have individual rectangular holes for timber rails are used for closeboard and palisade fencing.
• Concrete posts are also available for chainlink and mesh fencing.

Installing concrete gravel boards
When erecting panel fencing, concrete gravel boards are simply slotted into the slotted posts. These can then be bedded into the concrete to fix the fence posts and keep them level.
• With closeboard fencing, concrete gravel boards are used with morticed posts which are attached using two metal 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 bolts. Some concrete fence posts have four holes is to allow a choice of position.
• 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 total rigidity.

Installing posts on a slope
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 downhill. This helps with getting the height of the fence post correct.

Help & Advice
If you need to know more about fence posts and gravel boards, please get in touch with your local branch. Our specialists will be happy to offer help and advice and can provide you with a free quote for supply of all relevant materials.

23rd Sep 2019