FAQ: How To Build A Simple Retaining Wall?

What is the easiest retaining wall to build?

For the average do-it-yourselfer, building a retaining wall is easiest when using masonry blocks that will be stacked no taller than three feet, with no mortar binding the stones or concrete members. (For a curved wall, mark instead with a garden hose or spray paint.)

Can I build a retaining wall myself?

While retaining walls taller than four feet should be engineered by professionals, you may be able to DIY a solution for a tall slope by creating two or more shorter “tiered” retaining walls as opposed to a single tall wall.

How do you build a small retaining wall?

Build the Retaining Wall

  1. Step 1: Prepare the First Row.
  2. Step 2: Level the First Block.
  3. Step 3: Lay the First Row.
  4. Step 4: Adjust for Level.
  5. Step 5: Prepare for the Second Row.
  6. Step 6: Cut a Block to Start the Second Row.
  7. Step 7: Begin Laying the Second Row.
  8. Step 8: Add Landscape Fabric.

How do you build a retaining wall step by step?

Step by Step: How to build a retaining wall

  1. Dig a level-bottomed trench wide enough for the base stones to fit into. Compact the bottom of the trench with a hand tamper.
  2. Lay landscape fabric in the trench.
  3. Start the wall’s second layer using a staggered pattern.
  4. Make sure the wall is level.
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What is the cheapest retaining wall to build?

What is the cheapest retaining wall material?

  • Treated pine and is the least expensive material.
  • Hardwood is more expensive than treated pine.
  • Railway sleepers are another – slightly more expensive – option and are built to withstand ground and water contact.
  • Concrete sleepers are more expensive.

What can I use instead of a retaining wall?

  • Reinforced Soil Slopes. Reinforced soil slopes are a quick and easy construction style that uses a geotextile, such as polyethylene or polypropylene, to lock existing soil into place to create a reinforced mass.
  • Natural Stone Walls.
  • Wooden Timbers.
  • Gabion Walls.
  • Soil Bioengineered Walls.

Do I need drainage behind retaining wall?

Third, since most retaining walls are impervious, which means water cannot pass through the wall itself, efficient drainage is crucial. When drainage goes unaddressed hydrostatic pressure will build up behind the wall and cause damage such as bulging or cracking.

How high can you build a retaining wall without a permit?

Most municipalities require a building permit and a design from a Licensed Engineer if your wall is taller than 4 feet high (measured from the bottom of the first block to the top of the last block).

What is the best base for a retaining wall?

Due to soil erosion, your retaining wall should be built on a solid foundation made from gravel.

  • Choose gravel that has stones sized between 1/2-inch and 3/4-inch.
  • Fill the trench with a 2- to 3-inch layer of gravel.
  • Use a rake to ensure the stones are evenly distributed.

How many blocks do I need for a retaining wall?

To estimate how many blocks you’ll need per row, divide the total length of the wall by the length of the block. To figure out how many rows you’ll need, divide the ideal wall height by the height of the block. Make sure to account for the first row being half-buried.

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How do you calculate retaining wall?

Multiply the length of the wall (in feet) by the height of wall (also in feet) to get the square footage of the outside face of the wall. Then, multiply 1.12. This allows for having 12% of the wall’s height under the surface of the ground to give the wall more stability.

What does it cost to build a retaining wall?

The average cost of building a retaining wall is $5,585. Most homeowners find themselves spending between $3,190 and $8,670. The cost of retaining wall materials ranges from $3 to $40 per square foot. Wall block prices fall between $10 and $15 per square foot, while precase, poured concrete runs $20 to $25.

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