Concrete and Steel
A concrete sleeper and steel retaining wall. There are many different patterns and styles of concrete sleeper you can choose from. These walls are quite arguably the strongest and most common retaining wall.
Styled from selected stones these walls require a bit of artistic creativeness to come out looking good. Moss rock walls will look more natural and softer in landscaping designs than other walls but will take up more space for height than any other wall.
An infinite possibility in patterns, designs and costs. Will quite often work out to be the most expensive style of walling but also the most versatile to just about any garden design.
More commonly used for garden bed edging and raised vegetable beds. Timber walls will work out to be the cheapest for vertical walls.