Retaining walls are not only aesthetically pleasing but are also great for keeping soil erosion at bay and providing privacy for your home. Additionally, landscapes with retaining walls increase home value, providing an extra economic benefit.
Materials
When building a retaining wall, the first decision to make is what materials will be used. This choice comes down to style, budget, and the unique layout of the land.
Interlocking concrete blocks provide water and fire protection in the event of heavy rain or natural disasters. They also require no mortar, are rugged, and are cost-efficient. They come in a multitude of shapes and colors, providing options for whatever design you have in mind.
Railroad ties are one of the cheapest choices available. However, they are clunky and extremely labor-intensive. Cinder block is also an affordable option for those on a budget.
Concrete is an affordable material as well, but is difficult to repair or remove for changes. These walls can be easily painted to improve upon the dull base appearance. for more info visit www.retainingwallsgoldcoast.net.au.
Natural stone is the most expensive option available. However, it requires little maintenance over its lifetime, and is unmatched in its natural, scenic appearance.
Installation
The first step for installation is to mark out your site using wood stakes and a mason’s line. At the same time, remove any loose debris from the ground. Next, shovel out a trench for the bottom of the first masonry row. This trench needs to have one inch of depth for every eight inches of height for the wall.
After the trench is dug, add four inches of gravel and one inch of bedding sand on top. At this point, the base is finished. Now fit the stone or concrete members together, while adding gravel as back-fill upon finishing each row; this will strengthen the wall and increase drainage capability.
Finally, stagger new layers so that the wall inclines into the ground it is retaining in order to counteract gravity. You should also add flowers and small plants at the top; their roots will hold the soil in place, and will help blend the retaining wall with the surrounding environment