Description
25mm x 125mm treated tongue & groove cladding for exterior timber projects including sheds, summerhouses, garden rooms, garages and outbuildings. These pressure-treated softwood boards use an interlocking T&G/TGV profile for a neat boarded finish.
Product specification
- Nominal size: 25mm x 125mm
- Finished size: 20mm x 120mm
- Effective cover: 110mm per board
- Length: 4.2m / 4200mm / 14ft
- Material: pressure-treated softwood
- Profile: tongue & groove (T&G / TGV)
- Use: exterior timber cladding
Exterior tongue & groove cladding
The interlocking tongue and groove profile creates a close-fitting timber surface and gives garden buildings a clean, uniform boarded finish. The installed cover is 110mm rather than the full 125mm nominal board width, so use the effective cover when estimating quantities.
Common uses
- Sheds and garages
- Summerhouses and garden rooms
- Playhouses and outbuildings
- Gates and other exterior timber structures
Handling & installation
- Cut with standard woodworking tools
- Use suitable exterior-grade fixings
- Allow for natural timber movement during installation
- Re-treat freshly cut ends where possible
Other timber cladding profiles
For a rounded log-style finish, see our treated loglap cladding. For a rebated overlapping profile, see our shiplap cladding. You can compare all available profiles in the Timber Cladding range.
Frequently asked questions
What size are these T&G cladding boards?
They are 25mm x 125mm nominal, finishing at approximately 20mm x 120mm with an effective cover of 110mm.
What length is available?
This product is supplied in 4.2m / 4200mm / 14ft lengths.
Are these tongue and groove boards suitable for exterior use?
Yes. These are pressure-treated softwood cladding boards sold for exterior timber projects.