T&G Shiplap Tanalised Pressure Treated Timber 19mm x 125mm 4.8m

A pressure-treated tongue and groove shiplap cladding board with a clean, traditional profile. The overlapping shiplap edge and T&G joint provide a secure fit and encourage water runoff for dependable outdoor performance.

Suitable for sheds, summerhouses, garden rooms, workshops, fences, gates and garages, this tanalised timber protects against rot, fungal decay and insect attack. It is easy to work with and install for professional tradespeople and DIY projects alike.

Key Features

Highlights

• Tanalised pressure-treated protection against rot, fungal decay and insect attack
• Tongue-and-groove profile with overlapping shiplap edge for a secure fit
• Weather-resistant profile suitable for outdoor use
• Clean, traditional finish for sheds, garden rooms, workshops and more

Materials & care

This tanalised timber requires no initial surface treatment for typical outdoor use. Keep boards stored flat, dry and well-ventilated before installation. Cut ends and any site-cut surfaces should be treated with a suitable end-grain preservative.

Sizing & fit

Nominal board size: 19mm thick x 125mm wide. Finished size after machining: approximately 14mm x 119mm. This listing is for 4.8m lengths; the profile is also available in 2.4m, 3.9m and 6.0m lengths.

How to use

Slot the tongue-and-groove edges together and keep the shiplap overlap directed to shed water away from the structure for reliable weather protection.