How To Lay Retaining Wall Blocks On A Slope. Retaining walls can be constructed using a variety of materials, from poured concrete and large timbers don't lay blocks on an unlevel surface. The first course (or row of blocks) sets the stage for the rest of design and build your retaining wall to slope at a minimum rate of one inch for every.
Some such blocks are made with flanges that slip over the rear edge of the preceding course;
Retaining walls can be a great way not only to help with erosion and water drainage, but also to create beautiful, usable garden space. Use a garden hose to lay out a pleasing line for your retaining wall. Build a strong, stylish retaining wall without mortar. Insert wood stakes to mark the boundaries of the first retaining wall at the base of the slope.