Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
I'll try and get a better picture tomorrow - what am I looking for in terms of identifying features ?
Also, does the fact it is growing on treated timber have any bearing on the ID ?
Treated timber makes Gloeophyllum even more likely. As the name implies (rather badly as they are not gills) the pores should be maze like. look at the specimen posted by Littorella.
Seems to confirm your ID
Perfect example and a perfect reason for others to show an underneath shot.
Lat/Lng: 53.7, -1.6
OS grid ref: SE2933