If you are looking for detailed technical or fitting information related to decking we recommend a very useful guide to timber decking called:
Timber Decking the professionals' manual.
This is produced by TRADA in conjunction with the TDA (Timber Decking Association).
The manual includes information on all aspects of planning and building a deck.
We have copies of the manual available for £25 including post.
Alternatively they are available from the Trada web site for £30, please follow this link to their book shop.