Timber Treatment Use Class 2?

[Peter Percival]

Travis Perkins describe some timber as "Timber Treatment Use Class 2". What does that mean, and will it be suitable for building a garden shed out of? If it is suitable, do I need to treat it further before using it?

[Cash]

Would this link be any help?

There is a table explaining treatment 'classes' a short way down the page

If not, try posting your question on uk.d-i-y

Cash

[Peter Percival]

Thank you.