Abstract: A sliding shower door track for guiding and retaining one or more sliding shower doors. The track includes a column member adapted to be carried by a shower surface and includes: two grooves spanning the column member; a central ridge member spanning the column member and is disposed between the grooves; two ridge members spanning the column member and is respectively adjacent to the grooves; and retention members that substantially spans the column member and extends from the central and first side ridge members towards but not substantially in contact with the central and first side ridge members. The cross-sectional shape of the column ends is substantially trapezoidal. The column member has a plurality of water drainage ports adapted to allow the drainage of water from the track. The retention member is coupled to and extending from the central and first side ridge members.