The 20th Avenue station is a local station on the BMT Sea Beach Line of the New York City Subway, located on 20th Avenue between 63rd and 64th Streets in the Mapleton[4] neighborhood of Brooklyn.

[2] By September 2013, the Coney Island-bound tracks had been replaced with a new trackbed and rubber board protection.

It features abstract glass mosaics based on Storey's experience of riding the BMT Sea Beach Line.

Two staircases from each platform go up to an enclosed concrete crossover before a set of doors lead to the waiting area of the stucco and tile station house.

Outside the turnstile bank, there is a token booth and a set of doors leading to the east side of the 20th Avenue overpass/tunnel above the platforms and tracks.