This underground station has two tracks and two side platforms. Fixed platform barriers, which are intended to prevent commuters falling to the tracks, are positioned near the platform edges. Both platforms have their original mosaic tile band showing various shades of green and blue with peach and yellow borders. "G" tablets on a dark blue background run at regular intervals. The mosaic name tablets read "GRAHAM AVE." in goldseriflettering on a blue background and gold border. There are no columns on either platform.
Exits
Each platform has one same-level fare control area towards the west end. Each one has a turnstilebank and two street stairs. The ones on the Manhattan-bound side go up to either northern corners of Graham and Metropolitan Avenues, while the ones on the Canarsie-bound side go up to either southern corners. The Manhattan-bound fare control area has a full-time sales booth, while the booth on the Canarsie-bound one is for informational use only. There are no crossovers or crossunders.