Deposit Plywood and Acknowledge Feat

What happens here

Upon reaching the designated area, which appears to be a stack of similar plywood sheets on a grassy lawn, the man carefully lowers the four sheets he carried onto the existing pile. After successfully depositing the heavy load, he turns to the camera, visibly tired but triumphant, and holds up four fingers, indicating that he successfully carried all four sheets, thus completing the challenge.

Goal: The individual successfully delivers the plywood stack to its destination and signals the completion of the challenge.