During the regular season all seating in the Bleachers is general admission, with the only exceptions being the Budweiser Patio seats near the right field corner (Sections 316-318), and the Bleacher Suite just above the batters eye area in Center Field.

For any postseason games however, the Bleachers will become assigned seating, and each section will have up to 15 numbered rows of seating. Some of the best options for assigned bleacher seating are found in Sections 313-315 where you have a nice head on view into the Cubs dugout, and will have one of the less severe head turns to see the larger videoboard above left field.

Below is a Wrigley Field Bleacher Seating Chart when under assigned seating, displaying the names and row layouts for each section.

Wrigley Field Bleacher Seating Chart
Bleacher sections feature up to 15 numbered rows in each. Some of the best options are in Sections 313-315, and you'll want to avoid Sections 337-342 where the views are among the furthest.