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A concrete block retaining wall is the perfect solution to control erosion, to eliminate a hard-to-mow slope, to add a planting bed, or to level an ideal patio area. These systems are easy to install, durable, reasonably priced and available in a variety of colors and textures.
The focus of this article will be on the construction of concrete block retaining wall. Fig.1: Concrete Block Retaining Wall (SEXTON, 2017) Fig.2: Concrete Block Retaining Wall (GADANG, 2017) Following topics regarding construction of concrete block retaining walls are discussed: Advantages and application of concrete block masonry wall
As you lay the second course of the concrete block retaining wall, insert weep holes (¾-inch pipe) into the mortar every third block. Chip off a small recess in the block and trowel a mortar bed for the pipe, sloping it slightly toward the front. Then, chip out a recess on the next block, butter the ears, and set the block.
See our Retaining Wall Block Calculator and Planning for a Block Retaining Wall for more information on estimating project materials. Before you buy materials or begin work, check local building codes and your homeowners association regulations to see if there are any restrictions or requirements you need to follow.
A strong concrete block retaining wall is built in a running bond pattern similar to a traditional brick wall. Each course of block is back-set by 3/4" so that, while level, the wall effectively angles back into a hillside. This way the weight of the backfill is supporting the wall and not pushing against it.
For larger retaining walls up to three feet high, these 6″ x 16″ x 10.5″ concrete garden wall blocks are the best for DIY projects. They are widely available, easy to work with, and relatively inexpensive.
Interlocking concrete wall blocks are concrete blocks designed to fit together like a puzzle, in order to build a retaining wall. These concrete blocks are composed of a cement and aggregate mixture that is molded and then air-dried. To form the wall, concrete blocks are laid side-by-side and interlocked with each other, utilizing the grooves ...
If the wall runs up a hill, continue each base course of stackable retaining wall blocks into the hill until the top of the second course is level with the grade, and then start your second base course at that point. If you have the option, it can be easier to excavate and lay the lowest course before excavating the trench for the next step ...
When it comes to retaining walls, concrete blocks are fairly straight forward to install and will last a lifetime. But, it's not as easy as just stacking the blocks. If not done properly your concrete block retaining wall can have issues resulting in leaning and possibly falling over. The steps below will show you how to properly build a concrete block retaining wall and avoid these potential ...
Building a retaining wall is an effective way to manage slopes in your landscape, prevent soil erosion, and create usable outdoor space. In the video above, This Old House landscape contractor Roger Cook demonstrates the process of building a concrete block retaining wall. Below, we’ll outline the steps and offer some tips for DIY enthusiasts ...