Douglas Fir Tongue and Groove 400cm (10/24x195mm)

The Douglas Fir Tongue and Groove 400cm (10/24x195mm) is a strong and durable softwood cladding board with a natural appearance and excellent structural properties. Douglas fir is widely used in construction thanks to its stability, strength-to-weight ratio and versatility in both interior and exterior applications.

With a length of 4000mm and a profile of 10/24mm thickness combined with a wide 195mm face width, this board is ideal for creating clean, modern cladding surfaces with fewer joints and a premium finish.

Key Benefits

Strong and reliable Douglas fir softwood.
Wide 195mm profile for a bold architectural look.
Tongue and groove system for a tight, seamless fit.
Suitable for structural and decorative applications.
Stable timber with good durability.
Easy to machine, treat and install.
Suitable for interior and exterior use.

Applications

This Douglas fir tongue and groove cladding is suitable for a wide range of projects, including:

Facade cladding
Garden sheds
Summer houses
Garden rooms
Cabins
Exterior wall cladding
Interior feature walls
General timber construction

Specifications

Material	Douglas fir softwood
Profile	Tongue and groove
Length	4000 mm
Thickness	10/24 mm
Width	195 mm
Application	Interior and exterior cladding

Installation

Install the boards onto a straight and ventilated timber subframe to ensure long-term performance. Maintain proper airflow behind the cladding and use stainless steel or galvanised fixings to prevent staining and corrosion. Allow boards to acclimatise before installation for best results.

Maintenance

Douglas fir is naturally durable but benefits from protective treatment. Apply paint, stain or wood oil to protect against moisture, UV exposure and weathering. Without treatment, the wood will naturally weather to a silver-grey finish over time.