One page of dialogue usually equates to 1 minute of stage time.
Must be something that can be staged (not filmed). Multiple short scenes, extreme special effects, extras, and crowd scenes are all examples of things that are not applicable to short plays.
In play format
Duration (7-10 minutes long)
Jump right into the story and every detail must relate to the action of the play. Know what the play is about and compose into the metaphor. Character speaks to get what he/or she wants. All characters have dreams. These dreams are what makes he/or she unique. How are they fulfilled? How are they not fulfilled? How do they turn in on themselves. Characters should be off-balance in some way. If there is no disparity between what your characters are saying and what they are doing, you probably aren’t (composing) theatre. every great play has a point of no return and never let the characters off to easy. Additionally, every protagonist must have a journey. The protagonist crosses the line. Never let your characters off too easy, and find what is universal in your script. The climax is where a play wins or losses. The test of a great play is SELF Discovery.