How do you calculate blocks for retaining walls?

Likewise, how much does it cost to install a block retaining wall?

Retaining Wall Cost Most homeowners find themselves spending between$3,202and $8,402. The cost of retaining wallmaterialsranges from $3 to $40 per square foot. Wall blockpricesfall between $10 and $15 per square foot, while precase,pouredconcrete runs $20 to $25.

Also, how deep should the footing be for a retaining wall? To keep the bottom row of blocks from pushingoutward,bury the lowest section of a retaining wall. Thegeneralrule of thumb is to bury about one-eighth of the height ofthewall. For example, if your wall will be threefeet(36 inches) tall, the first course of blocks shouldstartfive inches below soil level.

Also asked, how do you calculate building blocks?

Measure the length and height of theblockin inches and then substitute the values in theequationsquare feet of block = (length ofblock x height ofblock) / 144. For example, astandard cement blockmeasures 16 x 8 inches, so it covers0.89 square feet — (16 x8) / 144 = 0.89.

What is the cheapest type of retaining wall?

In order of price, these are some costs for retainingwallmaterials:

• Treated pine and is the least expensive material.
• Hardwood is more expensive than treated pine.
• Concrete sleepers are more expensive.
• Besser blocks are relatively expensive to have installed.
• Interlocking concrete blocks come in a variety of prices.