I wanted to be able to plan ahead in my provision house queue, so created to following overviews.
Since a lot of people are buffing each other, I like to share it here:
Production queue lvl 3 provision house (100 baskets / 24h):
* Assumption: buffs are done by a friend, and you buff fishers and butchers
4* 25 baskets = 16h40m (uses 12k fish and 2k sausages (10k meat))
3* 25 fish deposits = 00h25m (6k required because of buffed fishers)
2* 25 meat deposits = 01h24m (5k required because of buffed butchers)
Free space: 05h31m (you can free an additional 42 minutes by buffing hunters)
Production queue lvl 4 provision house (150 baskets / 24h):
* Assumption: buffs are done by a friend, and you buff fishers and butchers
6* 25 baskets = 18h15m (uses 18k fish and 3k sausages (12k meat))
4* 25 fish deposits = 00h25m (9k required because of buffed fishers)
3* 25 meat deposits = 01h34m (6k required because of buffed butchers)
Free space: 03h46m (you can free an additional 32 minutes by buffing hunters)
You create somewhat more deposits then strictly necessary, so you can sometimes skip deposit creation.
I double checked the calculations, but might still have left some unintended surprises