Construction point

Overview of a ski jumping hill
Letalnica Bratov Gorišek in Planica, Slovenia. The K-point is marked with a horizontal line at the top of the red vertical line, while the line at the bottom is the hill size point.

The construction point (German: Konstruktionspunkt), also known as the K-point or K-spot and formerly critical point, is a line across a ski jumping hill. It is used to calculate the number of points granted for a given jump. It is also called calculation point or calculation line.