The stations, like those of the Ampang Line, are styled in several types of architectural designs. Elevated stations, in most parts, were constructed in four major styles with distinctive roof designs for specific portions of the line. The KL Sentral station, added later, features a design more consistent with the Stesen Sentral station building. Underground stations, however, tend to feature unique concourse layout and vestibules, and feature floor-to-ceiling platform screen doors to prevent platform-to-track intrusions. 22 stations (including two terminal stations and the five subway stations) use a single island platform, while 15 others use two side platforms. Stations with island platforms allow easy interchange between north-bound and south-bound trains without requiring one to walk down/up to the concourse level.