Sleepers are durable, pressure treated wooden beams that have a variety of applications in the home garden. While they make excellent garden borders and walls, some older sleepers have been treated with mineral creosote or other hazardous chemicals, potentially health, the reason why you should not use ties of unknown origin in Around edible plants. If you are simply looking for a retaining wall, away from any orchards or fruit trees, However, there are several ways to use them (Build Railroad Tie Retaining Wall).
Dormant an excellent material garden wall in gardens that do not contain edible plants. It is possible to stack dormant one on top of the other, with each layer attached to the anterior layer using long zinc or stainless steel peaks. Stagger the sleepers so that the joints of each layer do not align with the layer below, for greater stability.
If you have an existing retaining wall, built of blocks of cement or wood, you can build a new wall on the outside of the old one, using sleepers. This alleviates the extra effort of having to strut the old wall and remove and discard the old materials. Just build the containment wall on the outside of the old stone or wall of wood, ensuring the first layer to the ground with stakes, and ensure each successive layer to that below it with spikes.
In a landscape that contains a slightly sloping topography, a graduate, or wall loop of the railroad project stage is popular. You can create these by building a wall starting at the lower part of the hill. This part should be equal in height to the height of the highest point of the hill. You then build your wall by omitting a layer of loops as you get closer to the peak of the hill. Once the wall and the hill are levels, add a single additional layer, which puts the entire top of the wall and the top of the hill to complete the look.
If you are building a wall of significant height, more than 4 feet, you will want to further protect your wall to prevent it from tumbling. Sink concrete metal reinforcement bars along the perimeter of the area you intend to wall. You can then redrill the sleepers to slide them over the rebar for a long-lasting secure containment wall.