Softwood sizes

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Timber is an internationally traded material and the UK has
traditionally imported timber from a wide range of countries, as
well as producing its own. A large range of sizes are available
throughout Europe, with individual countries having different
traditions as to the sizes in common use.

This Wood Information Sheet (WIS) is an overview of the subject,
with signposts to more detailed sources that are listed at the end.

See also the related publication:
Eurocode 5 span tables


Suggested Reading

Round timber in construction: Notes for structural designnavigation-arrow

The use of round timber for structural applications can provide designers with attractive features in sympathy with local surrounding in a range of applications from housing and agricultural buildings to major engineering structures such as bridges.

Structural engineers are often faced with little information on designing with round timber...

01/01/2004 |  Other Technical Guidance  

Structural use of hardwoodsnavigation-arrow

Although the vast majority of structural timber in the UK is softwood, there is a significant interest in hardwoods from both temperate and tropical regions for structural applications. When using hardwoods in structures, the specifier may need to take more interest in the species, its origin and its moisture condition...

19/03/2020 |  Wood Information Sheet  

Principles of green oak constructionnavigation-arrow

There is growing interest in green oak framing for a variety of reasons, from satisfaction in hand craftsmanship to the ecological advantages of using a renewable material.


This Wood Information Sheet (WIS) is an overview of the design and construction principles that specifiers should consider in order to ensure...

23/03/2021 |  Wood Information Sheet