Calculate how many concrete blocks are necessary for your project by entering your wall dimensions and block size. Some brochures suggest compacted road base which can be fine for modest retaining walls (say about 50mm) but on greater walls, up to 1m, the use of concrete (a mix of Concrete Blend and Cement) is a substantially far better notion as it not only strengthens the retaining wall base a great deal but also guarantees that every level stays specifically level for the life of the retaining wall.

To cut a block in two, score a line about the middle with a brick chisel, then position the chisel on your scored line, and strike it with the smaller sledgehammer. A common rule of thumb is to divide the quantity of blocks by ten to get the quantity of 60 pound bags of mortar you’ll require, assuming you happen to be working … Read the rest