To lay sleepers (whether for garden edging, raised beds, or retaining walls), first dig a shallow, level trench and establish a freely draining sub-base of hardcore or gravel. Treat all cut ends, secure the sleepers together using timber lock screws or steel dowels, and periodically check for level alignment as you stack.
A stiff brush gets into the wood's grooves, clearing out dust and small particles. Pressure washer - Ideal for blasting away years of grime, algae, and fungus. A jet wash can rejuvenate old timber sleepers quickly. Sandpaper or an electric sander - Perfect for smoothing rough spots and edges.
Some people fasten railway sleepers together with bolts or Timberlok Screws. Others use steel angle brackets or steel flat connector plates. Some people use wooden or metal stakes to support their railway sleeper creations, whereas others slot their railway sleepers into steel 'I' or 'H' beams.
For a secure build, start by creating a level trench and placing your sleepers on a firm base of soil, sand, or hardcore. Check the surface with a spirit level, then overlap your corners like brickwork. Join them securely using heavy-duty timber screws or wooden dowels.
New Oak Railway Sleepers will split and shake over time, especially so if placed in varying temperatures. If you are looking to make furniture that is free from this, then you need to purchase higher quality Kiln Dried material - this is something that TimberClick can also supply.
Repair any holes, gaps or uneven surfaces with a suitable exterior wood filler and treat all sound, good wood with an exterior wood preservative. To preserve the sleepers further, we would recommend treating them with an exterior wood oil or decking oil, ideally twice a year in Spring and Autumn.
Properly cured, or "seasoned" firewood needs to be cut, split and stacked for a minimum of six months to be properly dried for this fall and winters fireplace needs.
The ends of railway sleepers are particularly prone to rot, as they soak up water easily. Applying a good quality wood preservative or sealant to the ends can slow down the absorption of moisture and help prevent rot from setting in.
As a rule, hardwood oak sleepers tend to last the longest naturally with an expected lifespan of around 100 years. An untreated softwood will last for between three and five years if it sits on the ground, whilst treated softwoods can last between 20 and 30 years if they are maintained correctly.
In conclusion, while you can lay railway sleepers directly on soil, it's important to take steps to prevent rot and ensure stability. With the right preparation—gravel for drainage, weed membranes, and perhaps some wood treatment—your sleepers will last much longer and remain an attractive feature in your garden.
Simply position your sleepers according to your project requirements and secure them using support plates with sleeper screws. To fix sleepers into the ground, position them on the desired location. Then, use a mallet to drive the support spikes into the ground. Finally, secure the sleepers with sleeper screws.
How To Level A Sloping Garden With Sleepers
Laying sleepers directly on the ground gives way to rising moisture. This can cause further damage if water can't drain from under the wood, causing sleepers to warp or rot. Adding a layer of gravel or sand before placing wooden sleepers on top will help with drainage.
Improve ground stability by adding a layer of gravel in the trench. This also helps with drainage. Place the first sleeper into the trench, using a spirit level to ensure it's perfectly horizontal. Drill holes into each end of the sleeper for screws if you are going to use screws to fix them together.
Hardwood is naturally resistant to rot and insect damage, making it a top choice for long-lasting outdoor projects. Softwood Sleepers: Made from pine or fir, softwood sleepers are more affordable but less durable than hardwood. With proper treatment and care, softwood sleepers can last around 10 to 30 years.
Disadvantages of Wood sleeper
Railway Sleeper Retaining Walls, Terraces & Steps
With these kinds of projects, you're definitely going to be needing to use concrete, because once they're in place they're going to be taking a great deal more strain and undergoing much heavier usage than the planters and edging.
A stiff brush gets into the wood's grooves, clearing out dust and small particles. Pressure washer - Ideal for blasting away years of grime, algae, and fungus. A jet wash can rejuvenate old timber sleepers quickly. Sandpaper or an electric sander - Perfect for smoothing rough spots and edges.
Although concrete sleeper retaining walls are durable, they must be installed correctly to avoid issues like poor alignment or insufficient drainage. Misaligned posts or inadequate footing depth can compromise the wall's stability.
Reduce Soil Contact: Where sleepers must be placed in or near soil, line them with heavy-duty plastic sheeting. This moisture barrier helps keep damp earth away from the timber. Improve Drainage: Before laying sleepers, spread a layer of gravel or coarse sand underneath.
Wood Preserver
However, to help nourish and protect the timber from decay it is a good idea to apply a wood preservative. Wood preservative treatments provide garden sleepers with protective properties that help prevent rot, mould and fungal growth, as well as help to form a defence against the elements.
Vinegar is ineffective for wood rot treatment, as it lacks the strength to penetrate and eliminate deep fungal growth in timber. Controlling moisture is crucial. To prevent wood rot from returning, ensure damp-proofing, good ventilation, and prompt leak repairs.
Motor oil repels water and deters insects, effectively slowing down rot in outdoor wood, such as fence posts or barns. However, it is an unregulated, environmentally hazardous practice. It never fully dries, leaches into the soil, emits a strong odor, and poses toxicity risks.