Hall had a total of 62 square feet of lumber. He used 10 square feet to build a project. He equally divided the remaining lumber to give to his 2 friends. How much lumber did each friend get?
Hall had 62 - 10 = 52 square feet of lumber remaining after building his project.
Each friend received 52 / 2 = 26 square feet of lumber. Answer: \boxed{26}.