Metsä Wood C16 Cls Timber - (L)2.4M (W)63mm (T)38mm

C16 is a structural grade for timber, indicating its strength properties, particularly its bending strength. It signifies that the timber has been tested and meets specific standards for use in structural applications, such as stud walls and floor joists, within certain design parameters.

This CLS timber is made from whitewood spruce and is not pre-treated for outdoor use. If you intend to use it in external applications or areas exposed to moisture, it must be treated with an appropriate wood preservative to protect it against rot and insect attack.

You can cut this timber using standard woodworking tools. For rough cuts, a hand saw is sufficient. For precise, clean cuts, especially for structural components, a circular saw or miter saw is recommended. Always ensure blades are sharp and wear safety goggles.

For most applications, standard timber nails (e.g., round wire nails) or wood screws (e.g., self-tapping woodscrews) are suitable. The length and gauge of the fastener should be appropriate for the thickness of the timber and the load it will bear. For structural connections, consider using galvanized or exterior-grade fasteners.

No, this standard CLS timber is not fire-retardant treated. If fire resistance is a requirement for your project, you would need to either apply a suitable fire-retardant coating or source timber that has been factory-treated to meet specific fire ratings.

A single length of Metsä Wood C16 CLS Timber - (L)2.4M (W)63mm (T)38mm weighs approximately 2.88kg, making it manageable for individual handling and transport.

CLS (Canadian Lumber Standard) timber typically features a smooth, planed finish on all four sides and has rounded edges, making it safer to handle and easier to work with. Standard sawn timber often has a rougher finish and sharper edges. CLS is commonly used for internal framing, while sawn timber might be used where appearance or handling comfort is less critical, or for rougher outdoor work.

This often occurs due to changes in moisture content. Store timber flat, off the ground, in the area of installation for at least 48 hours before use. This allows it to acclimate to the environment's humidity and temperature.

Ensure you are using the correct size and type of fastener for timber. For fastening near edges or when using larger screws, pre-drill a pilot hole slightly smaller than the screw's diameter. Ensure the timber is supported during fastening.

Verify that studs are correctly spaced, plumb, and adequately fastened to top and bottom plates. Ensure bracing (noggins) are installed at appropriate intervals. Review your structural plan to confirm the C16 grading is suitable for your specific application and consult a structural engineer if concerns persist.

This indicates moisture exposure. Remove the affected timber if severe, or treat with a fungicidal wood cleaner if superficial. Identify and eliminate the source of moisture. Ensure proper ventilation and consider applying a wood preservative in damp environments.