Final answer:
The mechanicals rehearse the play during a two to six week period before the opening night, with technical rehearsals occurring about a week before, and culminating in dress rehearsals to simulate actual performance conditions.
Step-by-step explanation:
The mechanicals in a theatrical production tend to rehearse the play starting from two to six weeks prior to the scheduled opening night. This period typically begins with general rehearsals and then transitions into technical rehearsals about a week prior to opening. During these rehearsals, the director focuses on integrating all design and technical elements such as sets, props, lights, microphones, and costumes. As the performances approach, the final round of rehearsals known as Dress Rehearsals occurs, which simulate showtime conditions.