Answer :
Final answer:
Guardrails are composed of a top rail near the top, a mid rail closer to the top than the base, and a toe board at the base to secure the area and prevent objects from falling.
Explanation:
The three main parts of guardrails are the top rail, mid rail, and toe board. The top rail is located near the top of the guardrail and serves as the primary barrier against falls. The mid rail is positioned in the middle, but closer to the top rail, and provides additional protection. Finally, the toe board is found at the base of the guardrail, preventing objects from falling off the edge.
