Built a wood shed and have some beech branches that came down in the storm at a friend's place earlier this year.
Cutting them up today and I noticed they have a weird orange fungus on them. Wonderinging if I should bin them (/take to recycling centre) rather than put them with all my other logs. I also have beech trees in the garden I'm quite attached to and don't want to introduce any pests.
So am I being crazy? Will it be fine just to leave the logs in the wood shed?

Old Russian saying
All fungi are edible, some more than once
Those are the fruiting bodies that the spores have been distributed from. You didn't breath any in did you? You might as well put the logs somewhere to dry properly and use them to warm the last few months of your now limited life...
He doesn't need to have breathed any in.

Keep us updated on the transformation process, OP.
Well I cycled past the place that the tree came from. No sign of the same stuff on the other beech trees that are next to where it is. Therefore I conclude that whatever it is it grew in my garden so it's fine.
Could be beech orange fungus, tastes a bit like sweet jelly and is edible but without seeing it for myself I'd just leave it.
This is how dead things get recycled. Chop up, store and dry, burn. Stop worrying.
In short, it is not a threat to your wood store or your existing Beech. The fungus is not one that is of arboricultural concern, that is not sat that it is not of interest. At risk of sounding like do your own research; fungi/host interaction, it's a fascinating part of arboriculture and in my opinion well worth studying. You could probably start and finish with Lynne Boddy, an absolute mass of work made really accessible.