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Treated Timber Sleepers | Garden & Landscaping Sleepers for Outdoor Projects

Our range of treated timber sleepers is perfect for a wide variety of landscaping and garden projects, offering strength, versatility, and long-lasting performance. Whether you're building raised beds, retaining walls, steps, or edging borders, these pressure-treated sleepers are built to handle outdoor conditions with ease.

✅  UC4 treated sleepers for above and in-ground use
✅ Standard sizes including 100x200mm and 125x250mm
✅ Ideal for garden design, retaining walls, steps & rustic features
✅ Easy to cut, fix and stack for DIY or professional use

All sleepers are pressure-treated to resist rot, decay, and insect attack, making them a low-maintenance and cost-effective solution for both residential and commercial landscaping.

✔️ Rustic or planed finish options available
✔️ Compatible with landscaping fixings and sleeper brackets
✔️ Nationwide delivery on single or bulk orders

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100 x 200 green treated square sawn Sleeper

Alter Supplies
Original price £21.50 - Original price £40.80
Original price
£21.50 - £40.80
£21.50 - £40.80
Current price £21.50
In stock

100 x 200 Green Treated Square Sawn Sleeper Enhance your outdoor projects with our 100mm x 200mm Sleeper, pressure treated in a natural green...

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Original price £21.50 - Original price £40.80
Original price
£21.50 - £40.80
£21.50 - £40.80
Current price £21.50

2.4M x 125 x 250 EXTRA LARGE green treated incised square sawn sleeper

Alter Supplies
Original price £47.93
Original price £47.93 - Original price £47.93
Original price £47.93
Current price £46.80
£46.80 - £46.80
Current price £46.80
In stock

250mm x 125mm Extra Large Sleeper @ 2.4m long, pressure treated green, Square sawn. Great for DIY projects such as raised beds and retaining walls....

View full details
Original price £47.93
Original price £47.93 - Original price £47.93
Original price £47.93
Current price £46.80
£46.80 - £46.80
Current price £46.80
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