How to Build a Retaining Wall

Retaining walls are built to prevent soil from being lost due to erosion or displacement down a slope. Once built, it can also be used as a beautifying feature in a garden. Depending on the site, different types of material can be used to make a retaining wall. This includes natural stone, wood, bricks and mock stone bricks. Follow the steps below to build a retaining wall.

Difficulty: Moderately Easy

Overall Things You'll Need

•     Hosepipe
•     Shovel
•     Gravel
•     Mallet
•     Concrete mix
•     Measuring tape
•     Mortar
•     Rake
•     String

Instructions

Step One

Identify the site where the retaining wall is to be constructed.

Step Two

List the building material with which you want to make the retaining wall. If you have several pieces of natural stone lying around in the yard, you may utilize it instead of buying bricks from a store.

Step Three

Clear the building site of debris, grass or any other material ****tered on the ground. Use a rake, if necessary.

Step Four

Measure the length of the wall with a measuring tape. Note that the height of the retaining wall should be equal to or less than half its base.

Step Five

Use a hosepipe or a piece of string to mark the wall boundary.

Step Six

Get a shovel to dig the marked area to a depth of about 1 foot. When you have dug almost up to the desired depth, simply scrape the loose soil. Continued digging will leave a loose foundation.

Step Seven

Spread a uniform layer of gravel to prevent the water-logging problem.

Step Eight

Build a layer of natural stone, bricks or interlocking blocks. Make sure they are close fitted. When using interlocking blocks, fill concrete holes with gravel after arranging a layer. In case you are using bricks, secure them with mortar.

Step Nine

Use a rubber mallet to align the units in place.

Step Ten

Fill holes in interlocking blocks with gravel. This is not required if bricks or natural stones are used.

Step Eleven

Add several layers until the wall is of the desired height.

Step Twelve

Pour concrete through the concrete holes of the blocks used in the topmost layer. This is not required if bricks or natural stones are used.

Step Thirteen

Add further stability to the soil by planting a suitable plant at the base of the retaining wall.

Overall Tips & Warnings

Check local laws in cities that require citizens permission for building a retaining wall.

Specific materials used to make retaining walls may be available in some markets. Verify its suitability at your site before buying.

Steep slopes can be better tamed by building multiple retaining walls to form terraces, each terrace about 3 feet high.

If using natural stone, use chicken wire to hold it in place.

Retaining walls measuring more than half the base are unstable.