The brother Gabriel is potentially an allegory to salvation. Other than being actually named Gabriel, like the angel, Gabe wears a trumpet, constantly chases away unseen ‘hellhounds’, and regularly believes himself to be speaking with Saint Peter. At the end, just before Troy’s funeral, the family gathers around Gabe in the yard. He blows three times into his trumpet, but no sound comes out. In a moment of trance, Gabe begins to dance and sing. The sun breaks through the clouds while the family looks on. Troy is at last delivered and the rest of the family is too; each seeming to find peace in their relationship with Troy.

The fence, referred to by the play’s title, is built over many years and is revealed to be finished only in the final act of the play. It is not obvious as to why Troy wants to build it, but a dramatic monologue in the second act shows how he conceptualizes it as an allegory — to keep the Grim Reaper away. The fence is also symbolic of the emotional barrier that Troy erected between himself and his sons, one from each of his adult relationships. Rose also wanted Troy to build the fence as a symbolic means of securing what was her own, keeping what belonged inside in (her family), and making what should stay outside, stay out.