Tanalised Treated Timber 47 x 50mm – 2×2 Timber
Tanalised Treated Timber 47 x 50mm is a practical and versatile timber section available in multiple lengths to suit different building, landscaping and outdoor woodworking projects. Commonly referred to as 2×2 timber, it is a popular choice for lightweight frameworks, garden structures, supports, battens, bracing and general construction work.
Its compact section makes it easier to handle and cut than larger timber sizes, while still providing a useful level of strength for many non-structural applications. Customers can select the most suitable length from the available options, helping to reduce unnecessary cutting, joints and material waste.
The timber has been pressure treated, commonly described as tanalised, to improve its durability. This treatment helps protect the wood against fungal decay and attacks from wood-destroying insects, making it suitable for many outdoor and moisture-prone applications.
Product Dimensions and Options
The nominal dimensions of this product are:
- Thickness: 47mm
- Width: 50mm
- Common imperial name: 2×2
- Length: Multiple lengths available
- Finish: Tanalised or pressure treated
Please select the required length from the available product options before adding the timber to your basket. Availability may vary between individual lengths and branches.
The term 2×2 timber is the commonly used imperial trade name for this section. Its supplied metric dimensions are approximately 47 x 50mm after processing.
All measurements are nominal rather than guaranteed finished dimensions. Machining, pressure treatment, moisture content and natural timber movement can cause small variations. Check the actual dimensions before starting work where precise finished measurements are essential.
What Is Tanalised Timber?
Tanalised timber has undergone a controlled pressure-treatment process. During treatment, the wood is placed inside a specialist vessel, where preservative is forced into the timber under pressure.
This process provides more effective protection than simply applying a preservative to the surface. It helps the timber resist fungal decay and wood-destroying insects, potentially extending its service life when it is installed correctly and used in an appropriate environment.
Pressure treatment does not make the timber completely waterproof or maintenance-free. Good installation practices remain important. Provide suitable drainage and ventilation, avoid areas where water can collect and protect any newly exposed surfaces after cutting or drilling.
Common Uses for 2×2 Treated Timber
The manageable 47 x 50mm section is suitable for many professional and DIY projects. Typical applications may include:
- Lightweight outdoor frameworks
- Garden structures and supports
- Trellis frames and screening
- Fencing components and repairs
- Timber bracing and noggins
- Shed and workshop projects
- Planter and raised-bed frameworks
- Landscaping features
- General carpentry and joinery
- Repair and replacement work
- Outdoor furniture frameworks
- Projects requiring a traditional 2×2 section
The availability of multiple lengths allows customers to choose an appropriate size for each project. Shorter lengths can be convenient for repairs and smaller garden features, while longer sections may reduce the number of joints needed across extended frameworks.
The suitability of this timber will depend on the project design, expected loads, environment and installation method. If it is intended for structural or load-bearing work, confirm that it has the appropriate strength grade and treatment classification before installation.
Pressure-treated timber is not automatically classified as C16, C24 or another structural grade unless it is specifically marked and sold as such. Structural spans, fixings, loads and supports should be determined by a suitably competent person.
Benefits of Pressure-Treated Timber
Timber installed outdoors can be exposed to moisture, changing temperatures and insects. Pressure treatment improves resistance to these conditions and makes the timber a practical option for numerous exterior projects.
The principal benefits include:
- Commonly known as 2×2 timber
- Multiple length options available
- Compact and easy-to-handle section
- Improved resistance to fungal decay
- Protection against wood-destroying insects
- Suitable for many outdoor applications
- Longer potential service life than untreated timber
- Suitable for professional and DIY projects
- Easy to measure, cut and install
- Useful for frameworks, supports and repairs
Different environments may require different treatment specifications. Timber designed for above-ground use may have a different treatment classification from timber intended for permanent ground contact.
If this product will be placed directly against soil, exposed to continuously wet conditions or used in a particularly demanding location, confirm that its treatment or use class is appropriate before installation.
Natural Appearance and Variations
Timber is a natural material, so every length will have its own appearance. Differences in colour, grain pattern and surface texture are normal. Individual pieces may contain knots, minor splits, wane, resin pockets, treatment marks and other naturally occurring characteristics.
Freshly treated timber may have a green or light brown tint, depending on the timber species and preservative used. The colour will normally soften and change as the timber is exposed to daylight and weather.
Changes in moisture content can cause timber to expand, contract, twist or develop small surface checks. These are normal characteristics of natural wood and do not necessarily prevent it from being used for its intended application.
Please note that colours, sizes and finishes can vary slightly due to manufacturing and pressure-treatment processes. Product images should therefore be regarded as representative because the supplied timber may not look exactly the same as the piece shown.
Cutting and Installation
This 47 x 50mm timber can be cut using suitable woodworking tools. Measure carefully and support the timber correctly before cutting to improve accuracy and reduce movement.
Cutting, drilling or notching can expose internal areas that may not contain the same level of preservative as the original treated surfaces. Apply a compatible cut-end or end-grain timber preservative to all exposed areas, following the manufacturer’s instructions.
Use fixings that are suitable for pressure-treated timber and the intended environment. Galvanised or stainless-steel screws and nails are commonly selected for outdoor installations because unsuitable metal fixings may corrode or cause staining.
Wear suitable gloves, eye protection and a dust mask when cutting or drilling. Work in a ventilated location, wash your hands after handling the timber and dispose of waste responsibly. Pressure-treated timber should never be burned.
Storage and Maintenance
Before installation, store the timber flat, evenly supported and raised clear of the ground. Protect it from prolonged heavy rain while allowing air to circulate. Correct storage helps reduce the risk of bowing, twisting and uneven changes in moisture content.
Once installed, the timber can be allowed to weather naturally or finished with a compatible exterior wood stain, paint or oil. Freshly treated or damp timber should be allowed to dry sufficiently before applying a decorative coating.
Inspect completed outdoor projects periodically for loose fixings, trapped moisture, exposed cut surfaces and damage to any applied coating. Completing minor maintenance promptly can help protect the timber and extend the life of the finished project.
Tanalised Treated Timber 47 x 50mm provides a versatile 2×2 section for numerous garden, landscaping and general construction tasks. With multiple lengths available, customers can choose the most appropriate option for anything from small repairs to larger outdoor frameworks.
Always check the selected length, actual dimensions, condition, strength grade and treatment classification before installation. Seek professional advice for structural or load-bearing projects to ensure the timber and proposed design are suitable.
