Siberian Larch Decking Boards Ribbed 27×142mm

Siberian larch decking boards 27×142mm with a ribbed profile provide a durable and practical solution for external timber decking. Known for its natural resistance to moisture and decay, Siberian larch is widely used for garden decking, terraces, and landscaping projects across the UK.

The ribbed surface offers improved slip resistance, making it suitable for areas where additional grip is required. The 142mm board width allows for efficient coverage while maintaining a balanced and consistent decking appearance.

This product forms part of our decking boards range and is a reliable alternative to both treated softwood and tropical hardwood decking. For premium durability, view our hardwood decking boards, or for enhanced stability and reduced maintenance, explore our ThermoWood decking.

Key Features

• Siberian larch decking boards
• Size: 27×142mm
• Ribbed decking profile for improved grip
• Naturally durable softwood
• Suitable for external decking applications

Why Choose Ribbed Larch Decking

Siberian larch offers a balance of durability and cost efficiency, while the ribbed surface provides additional grip in wet conditions. This makes it suitable for outdoor environments where safety and practicality are important.

• Improved slip resistance compared to smooth boards
• Natural resistance to moisture and decay
• No pressure treatment required
• Cost-effective alternative to hardwood decking

Installation Guidance

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

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

Applications

• Garden decking
• Terraces and patios
• Paths and walkways
• Residential and commercial outdoor spaces

Important Information

• Timber will weather to a silver-grey if left untreated
• Natural variation in colour and grain should be expected
• Ribbed boards may retain more dirt and require periodic cleaning