What Is the Back Line in Curling?

The back line of the house is the line on the edge of the 12 foot ring of the curling house, perpendicular to the sheet, in between the house and that end’s hack. It signifies the back edge of the playable area that makes up the house.

If a stone goes completely over this line, it is removed from play.

Keep your team’s stones in front of the back line and try to knock your opposing team’s stones past the back line to clean up the house.