Although retaining walls can be useful and create stunning gardens with depth and interest, they are also durable and structurally sound.
What is a Retaining Wall?
Let’s begin with the basics. A retaining wall in perth is an artificial slope you can build in your garden or backyard. A retaining wall can be used for both aesthetic and practical purposes. It protects your driveways, paths, or house pads. Or it can provide a visually pleasing separation for your garden beds.
Sharing is caring
You may need to involve your neighbor if you want to build a boundary wall. The wall’s cost and construction will be borne by the owner benefitting. Two neighbors can share the cost of the wall, but it might not always be obvious who the benefitting neighbor is.
Preparing for Construction
A retaining wall is a costly and disruptive project that can vary depending on the surrounding environment. Before the wall can be built, it must first be excavated. Depending on the job, this may be done with a shovel and a bit of elbow grease. Or, an excavator might be needed. If the former, you need to consider how the excavator of 2 tonnes will reach the job site and the potential damage it may cause.
Cross your Ts
Before the wall can be built, you may need to complete some paperwork. These are some things to be aware of before you begin construction.
- Engineers must design retaining walls that are taller than 1 m. You can use the engineer’s plans to get a quote on the work.
- Before you decide to proceed, make sure to check the requirements of your local council. In some cases, you may need a permit. Most councils will require you to obtain a permit depending on the height of your wall and the amount of earth needed to be moved. The application process is generally very straightforward. If you have any questions or need assistance, call the council directly.
- In the event of large walls, you may also need a building permit.
When building your retaining wall, you will have the option of choosing from a variety of materials. Each material has its pros and cons, but ultimately it comes down to your budget and the longevity of the materials. We recommend spending more than you can afford to build a longer wall. The best way to ensure the wall lasts as long as possible is to minimize disruption.
Concrete and treated pine are the two main options. Treated pine sleepers can last up to 15 years if properly maintained and installed. Concrete sleepers are more expensive at 15% but can last twice as long if properly maintained.
Drainage, drainage and drainage
Inadequate drainage is the leading cause of retaining wall failure. Although every contractor is trained to install drainage during the construction of retaining walls, residents need to learn how drainage works.
A retaining wall’s purpose is to support a certain amount of soil. Without proper drainage, rainwater or water from other sources can build up and cause additional pressure on the wall. The retaining wall is built to withstand pressure from the soil. If water is added to the soil, it can cause the wall to bulge or become lean.