Good morning you lovely scamps you! I hope you're all having a day of magic and wonder 
I intend to set up a website which will be used by all our buildings in the UK. It'll have general stuff like supplier info so I need to be able to add tags to things, so if someone searches "screwdrivers" it'll spit out all the suppliers we have on the books. Further to that I also need to be able to upload files to which I can also add tags which people can then download again. For example an out of order sign, if someone searches "out of order" then it should give a result being the sign which is ready for download to be printed and used.
Now! The structure will be fairly simple, so a "parent directory" which will have all the general stuff like signs and suppliers, but as our buildings are all over the UK we'll probably have different suppliers for different buildings. London will have different suppliers for coffee for example to Glasgow and Dublin, so I need specific "folders" for each building.
Now each building will have its own facilities manager and they'll all need access to the same parent directory but not each others' building specific directory so it needs to have a fairly comprehensive permissions and access system.
And last but not least, it needs to be free!
Yes folks, nothing too demanding there then
Anyone got any ideas?
Thanks <3

I intend to set up a website which will be used by all our buildings in the UK. It'll have general stuff like supplier info so I need to be able to add tags to things, so if someone searches "screwdrivers" it'll spit out all the suppliers we have on the books. Further to that I also need to be able to upload files to which I can also add tags which people can then download again. For example an out of order sign, if someone searches "out of order" then it should give a result being the sign which is ready for download to be printed and used.
Now! The structure will be fairly simple, so a "parent directory" which will have all the general stuff like signs and suppliers, but as our buildings are all over the UK we'll probably have different suppliers for different buildings. London will have different suppliers for coffee for example to Glasgow and Dublin, so I need specific "folders" for each building.
Now each building will have its own facilities manager and they'll all need access to the same parent directory but not each others' building specific directory so it needs to have a fairly comprehensive permissions and access system.
And last but not least, it needs to be free!
Yes folks, nothing too demanding there then

Anyone got any ideas?
Thanks <3