16 x 125mm (12x119mm fin) PTG Matching Redwood

Our Planed Tongue & Groove (PTG) Redwood cladding – 16 × 125 mm provides a clean, refined timber finish with precise machining and a smooth surface across every board. Manufactured from quality redwood softwood, this PTG profile creates a tight-fitting interlocking joint that delivers a neat, uniform appearance suitable for both external cladding and internal wall or ceiling linings.

With a 12 × 119 mm finished exposure, this profile offers crisp horizontal lines and a consistent face width, highlighting the natural grain and warm tones of redwood while maintaining a contemporary, professional finish.

Key Features

• Profile: Planed Tongue & Groove (PTG)

• Material: Redwood softwood with smooth planed finish

• Nominal Size: 16 mm thickness × 125 mm width

• Finished Exposure: 12 × 119 mm visible face once installed

• Precision-machined joint for a tight, consistent fit

• Smooth surface ideal for staining, painting or oiling

Typical Applications

• External timber cladding (with suitable detailing and treatment)

• Internal wall and ceiling lining

• Timber frame façades and architectural features

• Garden buildings, studios and outbuildings

• Feature walls and decorative panelling

Performance & Finish Options

• Interlocking PTG joint improves weather resistance when installed with correct cavity and ventilation

• Planed finish delivers a clean, modern aesthetic

• Easy to finish with stains, paints or clear oils

• Natural weathering to a silver-grey patina if left untreated externally

Technical Specification

• Cladding Profile: Planed Tongue & Groove (PTG)

• Nominal Thickness: 16 mm

• Nominal Width: 125 mm

• Finished Exposure: 119 mm

• Lengths: Available in standard trade lengths (confirm at order)

• Treatment: Supplied untreated unless specified

• Fixings: Stainless steel or coated fixings recommended for external use

Why Choose This PTG Redwood

We supply accurately machined timber cladding selected for consistent quality and ease of installation. The 16 × 125 mm PTG Matching Redwood profile offers a smooth, professional finish and reliable interlocking joint, making it ideal for projects where clean lines and natural timber character are key.