Question

Open sided walking surfaces located more than ______ inches above the floor or grade below, shall have guards not less than ______ inches in height.

1) 12, 54
2) 18, 42
3) 24, 36
4) 30, 30

Answer 1

The correct height requirement for guards on open-sided walking surfaces is more than 30 inches above the floor or grade below and guards not less than 42 inches in height.

Step-by-step explanation:

The question refers to the height requirements for guards on open-sided walking surfaces to ensure safety in construction or building designs. According to most building codes, open-sided walking surfaces located more than 30 inches above the floor or grade below shall have guards not less than 42 inches in height. This means the correct answer is option 2) 30, 42.