On June 27, 1922, the New York State Transit Commission commissioned its engineers to examine platform-lengthening plans for 23 stations on the lines of the Brooklyn–Manhattan Transit Corporation (BMT), the successor to the BRT, to accommodate eight-car trains. As part of the project, 53rd Street's platforms would have been lengthened from  to . Though the Transit Commission ordered the BMT to lengthen these platforms in September 1923, progress  on the extensions did not occur until February 16, 1925, when the New York City Board of Transportation (NYCBOT) commissioned its engineers to examine platform-lengthening plans for this and eleven other stations along the Fourth Avenue Line.
On June 27, 1922, the New York State Transit Commission tasked its engineers with examining platform-lengthening proposals for 23 stations on the Brooklyn–Manhattan Transit Corporation (BMT) lines to accommodate eight-car trains. As part of this project, 53rd Street's platforms were planned to be extended from to . However, despite the commission ordering BMT to lengthen these platforms in September 1923, construction did not begin until February 16, 1925 when the New York City Board of Transportation (NYCBOT) commissioned its engineers to examine platform-lengthening plans for additional stations along the Fourth Avenue Line.