On what page in the book hatchet does Brian make shelter out of trees?

Brian doesn't build shelter out of trees in the book "Hatchet". He uses a fallen tree and a tarp he finds in his plane's wreckage to create a lean-to style shelter.

You may be thinking of the scene where he builds a fire using the friction of two sticks. This happens in the beginning of the story, but he uses a dead branch from the forest floor, not a whole tree.

Let me know if you have any other questions about "Hatchet"!