composed of tubes, boards, and couplers work platform popular on the construction sites and projects requiring work at heights. It is erected temporarily as a way of supporting workers and enabling them access to the elevated parts of the building, bridges, and other structures they may need to repair or renovate. Since it can be dangerous by presenting a falling hazard, it can be used only by qualified crew members who have certain permissions. There are different types of scaffoldings that vary in specification.