If speed and durability are your main goals, a large block is likely your best choice. The durability of large block units is typically better.Large retaining wall projects can be completed quickly with large blocks.Only 1-3 people are needed to install a large block wall with the right equipment. Extremely tall walls are possible when using geogrid reinforcement.Taller walls can be built without requiring geogrid reinforcement.The choice of a large block units has many advantages: Each of these products also has their advantages, which you can find more information on here. Some commonly found large blocks in Calgary include Redi-Rock, Verti-Block, and Magnumstone. If equipment large enough to move heavy concrete blocks is available, large block retaining walls can be the quickest to build, the strongest, and sometimes even the cheapest option for your project. Take a look at our post on small block options here, if you think a small block wall is the right fit for your project. A long-lasting and great-looking wall can be constructed by a first-time wall builder if you have an experienced geotechnical engineer on your side to help you through the process. If you have an experienced retaining wall contractor that has the right equipment to handle large block units, they can very often be a stronger, and possibly more economical solution. While small blocks are great if you want to build a retaining wall without any heavy equipment, they can also be so approachable that an inexperienced installer might create a messy and expensive mistake. Overlooking the requirement for geogrid can cause a new wall to fail within a very short period of time.Consistent subgrade soil conditions are critical to prevent “frowns” or “smiles” in the retaining wall (poor subgrade soil or localized rigid structures that cause one section of blocks to settle more or less than the rest of the wall).Deformations or installation mistakes are more visible in a small block wall.Without an experienced contractor installing the retaining wall, it is easy to overlook crucial installation details.Unfortunately, there are also some drawbacks that come with selecting small blocks for your project: Easier to build in locations with poor access.Versatile so that landscaping/retaining wall contractors can build much taller walls with a properly engineered design.Simple enough for homeowners to build their own small walls with.Can be handled without the use of equipment.These walls are great for a number of reasons: When you think of a small block wall it is probably either Allan Block or Cornerstone products that will come to mind. Small block retaining walls are one of the most common wall types found around both residential and commercial properties in Calgary (and most cities). The availability of specific block units might vary, depending on your location, but the first step to building a block retaining wall is deciding whether you want to use large or small blocks. If you have already chosen to build a retaining wall out of concrete blocks, keep reading for some information on how to choose between large and small block units.Īlthough there are many options out there, this article will specifically evaluate the difference between large and small-block products. You could use any combination of timber, steel, concrete, wire, or boulders but which options are going to stand the test of time without costing you an arm and a leg. When it comes to building a retaining wall there can be a lot of confusing choices to make.
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