Timber

[Sapper]

Being a hobby woodworker, how can I tell the difference between oak and ash logs in their green state? I’ve got a log burner and had logs of both woods delivered but some got mixed up. The bark looks the same to me and the the rest also?

 

[Adam W.]

Look for the obvious white streaks/lines of ray parenchyma (medullary rays) on the end grain of oak. They go radially from the middle of the log to the edge.

Like zo.....

 

[Fred48]

Look for medullary rays in the end grain. That's the oak

 

[Sapper]

Thanks for that and much appreciated

 

[Yojevol]

Some other identifiers:-

As in the pic above, oak will have a distinct sapwood under the bark, whereas ash is pretty uniform throughout.

The colour of ash is lighter, similar to the oak sapwood

Smell - you'll just have to learn the difference.
Brian