Hi, hopefully someone on here can give me some advice.
We are extending our garden but the level drops by 3 foot, our plan is to use concrete posts (7.9 ft) with 3 ft of gravel boards and a 3 ft wooden fence panel. My concern is that whether the concrete posts will hold back 3 ft of dirt if they are concreted 1.9 ft in to the ground (leaving us 6 ft above ground). Im not even sure if using 3 x 1 foot high gravel boards is safe. The total length of this fence is around 18 metres so thats a lot of weight to hold back.
welsh brickie wrote:you could use railway sleepers either flat or concrete them in vertically
Its a common survey the railway sleepers are laid lengthwise,whether on edge or flat which will depend on the strength, preference and budget.Lowest heights of 175-375mm which will require very little to secure the railway sleepers into position,though its depending on the length and shape (right angles tend to add strength).
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