Knowledge Centre

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Strength and Span Tables


New C16 and C24 Span Tables available to download from TDUK
Timber Development UK are delighted to announce the publication of essential span tables for C16 and C24 timber grades.

Span tables are the most commonly requested form of data we receive from builders’ merchants. Timber Development UK has just published a suite of span tables and they are available free to members for download from the TDUK website .

Calculating spans

Span tables allow you to calculate the size of a timber member of a particular strength class required for a given span – as well as the maximum spacing between each section or timber member. They help you to choose an appropriate size and stress grade to achieve your spanning requirements.

Your free calculator for span tables, quantities, volumes, surface areas and angles:

  • Span tables
  • Calculating quantities
  • Tools
  • Range
  • Moisture
  • General information
  • Preservative treated wood
  • Treated timber
    – and much more!

About this publication
Now with lay-flat wire binding, BM TRADA’s Eurocode 5 Span Tables is a well-established key resource in timber specification and building. It is an essential tool for calculating the size of solid, softwood timber members necessary to give adequate support to floors, ceilings and roofs in dwellings.

The tables cover softwood species and grade combinations which satisfy strength classes C16 and C24.

Eurocode 5 Span Tables 4th edition for solid timber members in floors, ceilings and roofs for dwellings.

Additional Eurocode 5 Information:

There are a number of different standards within the Eurocode 5 family on the BSI website, probably the most important of which is HERE.

More guidance available HERE.


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