Based on our research, it appears that SiteGround may not offer unmetered disk space at the current time. You may be able to find additional information about SiteGround's unmetered disk space on their customer service page or FAQ here. You can also visit their homepage to see if SiteGround has posted any updated information about their unmetered disk space.
As of Tuesday, Amazon
is offering discounts on top server hosting products
like SiteGround. Get this deal >>
This user rated SiteGround's unmetered disk space: 3.0