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GUIDE: Garden Sleepers - What's the Difference?

Which railway sleepers are best?

Wondering which railway sleepers are best for the job at-hand?  Luckily for you, the Suregreen team have been busy putting together answers to your frequently asked questions, so that you can choose the right railway sleepers for your next project.

What are railway sleepers?

Traditionally used to lay rail tracks on, railway sleepers are large rectangular sawn pieces of timber that are now used in a variety of landscaping and gardening environments, such as raised beds, lawn and border edging, steps, pathways and retaining walls.

What is the difference between softwood and hardwood railway sleepers?  What are softwood sleepers made from?

Our softwood railway sleepers are sawn from pine, spruce and larch wood.  Softwood sleepers are from faster growing trees where the wood is not as dense and slow growing as hardwoods such as oak. As the softwood is not as naturally dense and strong as oak, they are pressure-treated to counter this and offer long-lasting protection against damp and rot. Our hardwood sleepers, on the other hand, are from slower growing trees, predominantly oak (Quercus Cerris & Robur), where the wood is dense and heavy, and thus naturally strong and resistant to the elements of nature without the need for treatments.

How long do railway sleepers last?

Railway sleepers will last for years, with our softwood treated sleepers typically lasting around 8 to 10 years due to the pressurised treatment, and UC4 treatments extending this to 15 years. Softwood that is left untreated will still last around two to five years, which is why all of our softwood sleepers have been treated for longevity.  We also supply hardwood sleepers, with oak sleepers ranging from 15 to 20 years and European oak sleepers lasting for 20 years.

Do I need to apply treatments to the railway sleepers? 

All of our softwood railway sleepers are already pressure treated, so you do not need to treat them with a wood preservative unless you sawn them into different lengths, leaving the ends open and needing protection to last their expected lifespan of 8 to 10 years. Our hardwood sleepers do not need treating, as they are naturally dense and strong, but will benefit from a lick of oil (such as linseed or Danish) to keep their aesthetics on top form.

What does tanalised mean?  What pressure treatment do you use on railway sleepers?

Pressure treatment, also known as tanalisation, refers to the way in which the timber is treated. Our railway sleepers are cut from sustainably run forests, then sawn into the required shapes. After reaching the correct moisture content (around 25% max), the railway sleepers are put in a large cylinder. When the doors to the cylinder are shut, a chemical such as Tanalith E is added to cover all the wood, before up to 13 bar of pressure is applied to ensure the preservative chemical is absorbed. The chemical is then drained from the cylinder, before the timber is vacuumed to pull out any chemical left. This leaves treated wood to remain resistant to the elements of nature.

Railway Sleeper Tanalisation Process | Suregreen Ltd

What is the difference between green and brown treatments?

The treatment process is exactly the same, however, the brown treated sleepers have a brown dye added.  There is no difference other than the aesthetics.  If you would prefer a more modern look, why not try our Barrettine Shed & Fence Treatment?

Do you use Creosote on your railway sleepers?

No, our railway sleepers have not been treated with Creosote.  Historically, Creosote used to be used for railways sleepers as it is the ultimate treatment for timber for ensuring longevity. However, this is now outlawed for the domestic market - and on a hot day, the last thing you want is a sleeper sweating out tar on your pristine garden! Creosote now is only used for commercial fencing for livestock applications and telegraph poles. 

What is the difference between reclaimed and new railway sleepers?

Reclaimed sleepers are the result of the railways replacing Creosote treated sleepers with concrete and other new materials. They are popular for their look, but are messy, hard to stack and when it comes down to it - not as good for landscaping as other sleepers. Brown treated softwood sleepers look similar, but are far safer for children and pets, and will not sweat over time in the heat like the reclaimed sleepers. The Rolls Royce of sleepers are the heat-treated charred brushwood sleepers. These railway sleepers have the looks of a perfect grade reclaimed sleeper, but only more so, and are uniform in size and appearance, whilst retaining the intricate grains of the wood. They are softer to touch, and generally have a pleasing vibe to them. You have to see them to believe what we are talking about - and for those that spend a bit more for them (they take a lot of work to produce such a condition, and are larger in size than standard sleepers), they are never disappointed. 

How can I use railway sleepers in my garden? 

Railway sleepers can be used in all manner of ways. The most popular uses for railway sleepers are retaining walls, border edging and raised beds, however, we have seen people make raised deck areas from them, use sleepers vertically to create fences and walls, and one customer even used railway sleepers to make a swimming pool for the summer! They can be secured and lined to make ponds, and many gardeners and landscapers use them to make benches, tables and other features in the garden.  For a more modern touch, we'd recommend pairing our railway sleepers with gabion baskets.  Need some inspiration or advice? Check out our how-to guides on railway sleepers:

How to Build a Raised Pond with Railway Sleepers
How to Build a Sandpit with Railway Sleepers
How to Build a Raised Bed with Railway Sleepers

Railway sleepers used to build a raised garden border Attractive railway sleeper retaining wall with a dog sunbathing on the grass Railway sleepers used to create an aesthetically pleasing garden pond Railway sleepers used to create a rustic yet modern garden  Railway sleepers retaining wall and garden steps

Can you cut railway sleepers? 

To get the best cut on a railway sleeper you need to make small straight cuts with either a circular saw or a chainsaw. This can be easy to do to make sure that they fit together nicely to make flower beds. Cutting a treated softwood sleeper, however, will expose the untreated centre of it, meaning a coat of wood preservative would be recommended on the exposed ends.

How do I fix railway sleepers together?

Railway sleepers are known to shrink over time, so securing them tight is very important. The best thing to use are railway sleeper screws and brackets. These may need to be changed over a few years to keep them as secure as possible.

What railway sleepers do you supply?

We can supply our railway sleepers both individually and as a pallet, for trade and retail customers.  You can find our railway sleepers, railway sleeper screws, angle brackets and connector plates below:

Green Treated Softwood Sleepers

1.2m x 200mm x 100mm Green Treated Softwood Railway Sleepers
2.4m x 200mm x 100mm Green Treated Softwood Railway Sleepers
3m x 200mm x 100mm Green Treated Softwood Railway Sleepers
2.4m x 240mm x 120mm Green Treated Softwood Railway Sleepers

Brown Treated Softwood Sleepers

1.2m x 200mm x 100mm Brown Treated Softwood Railway Sleepers
2.4m x 200mm x 100mm Brown Treated Softwood Railway Sleepers
3m x 200mm x 100mm Brown Treated Softwood Railway Sleepers
2.4m x 240mm x 120mm Brown Treated Softwood Railway Sleepers

Charred Brushwood Sleepers

2.4m x 200mm x 100mm Charred Brushwood Railway Sleepers

Hardwood Oak Sleepers

1.2m x 200mm x 100mm Hardwood Oak Railway Sleepers
2.4m x 200mm x 100mm Hardwood Oak Railway Sleepers
3m x 200mm x 100mm Hardwood Oak Railway Sleepers

European Oak Sleepers

2.4m x 200mm x 100mm European Oak Railway Sleepers

UC4 Green Treated Sleepers

• 2.4m x 200mm x 100mm UC4 Green Treated Softwood Railway Sleepers

Railway Sleeper Screws, Angle Brackets and Connector Plates

TIMCO Angle Sleeper Brackets
TIMCO Flat Connector Plates
TIMCO Hex Socket Driver Bit
TIMCO Hex Head Sleeper Screws
TIMCO Wafer Head Sleeper Screws
TIMCO Stainless Steel Hex Head Sleeper Screws
TIMCO C2 Multi-Purpose Screws
TIMCO Coach Screws

 

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