Generally, a vertical notch of about ½ in.
(13 mm) height is considered adequate for most surface course mixtures. It is recommended to end
the taper with a minimal height such as 3/8 in. (9.5 mm) to avoid dragging of the material. Usually a
loaded wheel, which is attached to the paver, is used to compact the taper. Typically, the roller weighs
100–200 lb (45–91 kg) and is approximately 14 in. (356 mm) wide by 12 in. (305 mm) in diameter.