US Patent 9797158 Friction picket system

A railing assembly may include a first railing portion including a first channel and a second channel. The railing assembly may include a first retaining element disposed at least partially in the first channel. A second retaining element may be disposed at least partially in the second channel. A baluster may be disposed at least partially in the first railing portion. The first retaining element and the second retaining element may be configured to retain the baluster relative to the first railing portion. The railing assembly may include a second railing portion, and the baluster may be disposed at least partially in the second railing portion.