Is TR26 stronger than C24?

Timber for use in load bearing situations is typically required to be graded to strength classes usually C16, C24 and TR26 in the UK (TR26 and C24 are a higher structure grade than C16).

What does C16 and C24 mean?

C16 and C24 refer to the strength grade of a piece of carcassing timber. There are 12 strength grades as set by the British Standard in the BS 5268, but the most commonly specified are C16 and C24. Both grades are used in structural applications and are suited to different loads.

Is C16 timber OK for decking?

Softwood with a strength class rating of C16 is considered the minimum standard for decks above 600mm in height and is a requirement of building regulations for such raised level structures. For decks below 600mm in height the use of C16 timber is recommended.

Which is better C16 or C24 timber?

C24 timber is the superior cousin of C16. This grade is also kiln dried and used in construction products. It is more superior in terms of its properties such as strength, resilience and appearance with very few defects if any. C24 timber costs slightly more than C16.

What does the C stand for in C24?

The ‘C’ grading simply stands for conifer, the variety of tree the timber is made from while the number indicates the strength, with the specific measurements allowed outlined in the table below: Strength & Properties Class. C16. C24.

What does D stand for in timber?

Timber Abbreviations

Can I use C16 timber for roof joists?

What is C16 timber? C16 timber is kiln dried, to minimise the amount of moisture within the wood, and is most commonly used in internal construction projects such as walls, floor and roof joists.

What is the best timber for decking joists?

The best timber for decking joist should be a kind that is resistant to termites, decay, or rot. Timbers like Cedar, Ironbark, Spotted gum, and pressure-treated pines are good for making decking joist.

How strong is CLS timber?

The CLS timber is usually graded in respect to its strength in strict conformity to the British Standard EN 14081-1:2005. This wood can be graded as either C16 or C24. The C24 is the stronger grade, but both categories tend to have a similar physical appearance.

What is the best grade of wood?

FAS (First and Second) is the highest grade of hardwood lumber. It’s usually 6-inches x 8-inches and is 83 percent defect-free on its best side. Select is 4-inches x 6-inches and 83 percent defect free on its best side.

When did en10088-2 replace bs1449?

Listed below are the EN Specifications relating to Chemical Composition and Mechanical Properties that have replaced The old BS Specifications. BS1449 for cold rolled has been replaced by: Standard Scope EN10088-2 Replaces BS1449-Part 2: 1983 EN10059 Covers Heat Resisting Grades

What’s the difference between bs1449 and bs1501?

BS1449 for cold rolled has been replaced by: Standard Scope EN10088-2 Replaces BS1449-Part 2: 1983 EN10059 Covers Heat Resisting Grades BS1449 & BS1501 for hot rolled have been replaced by: Standard Scope EN10088-2 Replaces BS1449-Part 2: 1983 EN10028-7 Replaces BS1501-Part3: 1990 EN10095 Covers Heat Resisting Grades

What’s the difference between BS970 and bs10088?

BS970 for bar has been replaced by: Standard Scope EN10088-3 Replaces BS970 Part 1: 1991 & BS970 Part 3: 1991 covering chemical composition & mechanical properties Be Aware!