Siberian Larch Decking Boards Smooth 28x140mm

Siberian larch decking boards 28×140mm provide a durable and cost-effective solution for external timber decking. Naturally resistant to moisture and decay, Siberian larch is widely used for garden decking, terraces, and landscaping projects across the UK.

The smooth profile offers a clean and contemporary finish, suitable for both modern and traditional outdoor spaces. This product forms part of our wider decking boards range and is a reliable alternative to both treated softwood decking and tropical hardwood decking.

For premium durability, explore our hardwood decking boards, or for enhanced stability and reduced maintenance, see our ThermoWood decking.

Key Features

• Siberian larch decking boards
• Size: 28×140mm
• Smooth decking profile
• Naturally durable softwood
• Suitable for external decking applications

Why Choose Siberian Larch Decking

Siberian larch is a dense softwood with natural resistance to decay, making it suitable for outdoor use without the need for pressure treatment. It offers a balance between performance and cost, making it a popular choice for residential decking projects.

• Natural durability without chemical treatment
• Improved resistance to moisture compared to standard softwood
• Cost-effective alternative to hardwood decking
• Versatile for a range of outdoor applications

Installation Guidance

Decking boards should be installed onto a suitable subframe with proper ventilation and drainage to ensure long-term performance. Correct spacing and fixing methods are essential to accommodate natural timber movement.

• Recommended joist centres: 400mm
• Allow spacing between boards for drainage
• Use stainless steel fixings
• Ensure adequate airflow beneath decking

Applications

• Garden decking
• Terraces and patios
• Residential outdoor spaces
• Landscaping and commercial projects

Important Information

• Timber will weather to a silver-grey if left untreated
• Natural variation in colour and grain should be expected
• Regular maintenance can extend appearance and lifespan