Curling 4 Foot
The 4 foot in curling is the third largest of the four concentric circles in the house. It is 4 feet in diameter and usually painted red. The 4-foot surrounds the button in the house. The 4-foot is used in mixed doubles curling on power plays.
Back 4 Foot
The back 4 foot in curling is the half of the 4 foot behind the tee line. In mixed doubles curling, one of the placement stones is placed in the back 4 foot.
Top 4 Foot
The top 4 foot in curling is the half of the 4 foot that is in front of the tee line. When placing curl shots thats land near the button, teams usually try to stay in the top 4 foot to make it more difficult for the other team to land near the button.