Picket Fence

Picket fences

are a type of fence often used decoratively for domestic boundaries, distinguished by their evenly spaced vertical boards, the pickets, attached to horizontal rails.

Picket fences are particularly popular in the United States, where the style has been used since America’s earliest colonial era and remains popular today. They are a decorative way to contain pets and children without blocking views, and are used around both front and back yards. Traditionally picket fences were made out of wood and painted white (or whitewashed), but now picket fences are also widely available in polyvinyl chloride (PVC).

Source https://en.wikipedia.org/wiki/Picket_fence