This title is significant because it points out to us how important the huts are in the development of the plot and the conflicts that will be so important during the rest of the book.
In the chapter, Ralph and others are trying to build huts. They believe that it is important to have huts so they will be able to survive in relative comfort. In other words, they are trying to be responsible.
Meanwhile, Jack and his people do not help with the huts. Instead, they go hunting. Ralph scolds Jack for this and it is the source of some conflict.
This is an early sign of the Ralph-Jack conflct. Jack will become more and more obsessed with hunting and less interested in doing the sorts of responsbile things (like tending the signal fire) that Ralph wants done.
In the book "The Lord of the Flies' the boys are aware they need shelter. Shelter is a remnant of a civilized people. Ralph is aware that shelter will provide protection from the rain should it come, hold off the winds from their faces, and give some degree of comfort to the littleuns. Jack could care less. He is more filled with wild abandon.
Ralph is also trying to get some degree of order established. As he tries to keep people helping him, the children run off. He is slowly losing his hold on leadership. Jack on the other hand is focused on the most basic of needs, food. He wants to hunt. Man's first needs to be met are thirst and food. In primitive man they would have come first and the boys are becoming primitive. They have to survive. Jack is also becoming more of a savage because he is longing for the kill.
The huts chapter is one about the gradual transference of leadership based on the survival needs of the boys at their most primitive level.