The most recent job Sean Adcock built was a third tall wall, this time a garden wall in Beddgelert, North Wales.
About 8 feet high (8-10 inches buried),this wall made of slatey material had lots of tracing in the bottom half especially. The throughs were put in at approximately 24 and 42 and 60 inches, all laid 36 inches apart. The batter was about 1:8 ( Sean usually does 1-6) becaue the wall needed to be around 16 inches at top for coping. A seven foot wall (before copes) would have had to have nearly 4 feet of base At 1-8 batter, only a three foot wide base is needed.
The reasons a wider base was not thought to be a good idea were many, including the fact that the original wall was 3 foot narrow presumably allowing more garden room.
In the end the owner, a builder suggested he lay a 3 foot concrete slab footing for the wall (the appropriateness of which is an argument for another day perhaps).
