Theater seating plan

This seating plan sample shows the seat layout in the theater.
"A theater, theatre or playhouse, is a structure where theatrical works or plays are performed or other performances such as musical concerts may be produced. While a theater is not required for performance (as in environmental theater or street theater), a theater serves to define the performance and audience spaces. The facility is traditionally organized to provide support areas for performers, the technical crew and the audience members.
There are as many types of theaters as there are types of performance. Theaters may be built specifically for a certain types of productions, they may serve for more general performance needs or they may be adapted or converted for use as a theater. They may range from open-air amphitheaters to ornate, cathedral-like structures to simple, undecorated rooms or black box theaters. Some theaters may have a fixed acting area (in most theaters this is known as the stage), while some theaters such as black box theaters, may not, allowing the director and designers to construct an acting area suitable for the production.
In Australia and New Zealand a small and simple theater, particularly one contained within a larger venue, is called a theatrette. The word originated in 1920s London, for a small-scale music venue." [Theater (structure). Wikipedia]
"... theatres or cinemas may allow spectators to choose their seats beforehand. A seating plan is of crucial importance for musical ensembles or orchestras, where every type of instrument is allocated a specific section." [Seating plan. Wikipedia]
The seat layout example "Theater seating plan" was created using ConceptDraw PRO diagramming and vector drawing software extended with the Seating Plans solution from the Building Plans area of ConceptDraw Solution Park.

This seating plan sample shows the stadium seat layout.
"A modern stadium (plural stadiums/ stadia) is a place or venue for (mostly) outdoor sports, concerts, or other events and consists of a field or stage either partly or completely surrounded by a structure designed to allow spectators to stand or sit and view the event. ...
Spectator areas and seating.
An "all-seater" stadium has seats for all spectators. Other stadiums are designed so that all or some spectators stand to view the event. The term "all-seater" is not common in the U.S., perhaps because very few American stadiums have sizeable standing-only sections. ...
The spectator areas of a stadium may be referred to as bleachers, especially in the U.S., or as terraces, especially in the United Kingdom, but also in some American baseball parks, as an alternative to the term tier. Originally set out for standing room only, they are now usually equipped with seating. Either way, the term originates from the step-like rows which resemble agricultural terraces. Related, but not precisely the same, is the use of the word terrace to describe a sloping portion of the outfield in a baseball park, possibly, but not necessarily for seating, but for practical or decorative purposes. ... Many stadiums make luxury suites or boxes available to patrons at high prices. These suites can accommodate fewer than 10 spectators or upwards of 30 depending on the venue. Luxury suites at events such as the Super Bowl can cost hundreds of thousands of dollars." [Stadium. Wikipedia]
The seat layout example "Stadium seating plan" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Seating Plans solution from the Building Plans area of ConceptDraw Solution Park.