Vert ramp
A vert ramp is a form of half-pipe used in extreme sports such as vert skating, vert skateboarding and vert BMX.
Vert ramps are so named because they transition from a horizontal plane (known as the flat-bottom) to a vertical section on top.
The typical height of a vert ramp is 14 ft (4.3 m) to 15 ft (4.6 m) with anywhere from 6 in (150 mm) to 2 ft (0.61 m) of vertical on top.