Access Control Lists

To set the default facl on a directory:
setfacl -m user::rwx,group::rwx,other:---,mask:rwx,default:user::rwx,default:group::rwx,default:other:---,default:mask:rwx <Directory name>
This configures the directory to propagate by inheritance any acls added to it for users

To add users to acls in a directory structure with inheritance all of the directories in the folder structure must have a "default acl" set. After cd'ing into the relevant directory run the following
find . -type d -exec setfacl -m user::rwx,group::rwx,other:---,mask:rwx,default:user::rwx,default:group::rwx,default:other:---,default:mask:rwx {} \;