Question: How to check level with containers on wood plank.
Option 0: Using a level, place it on the corner of the plank with the containers a few inches apart. If it is showing it is leveled, then leave, if it is not then adjust plank.
Option 1: Using a level, place it on the middle of the plank with the containers a few inches apart. If it is showing it is leveled, then leave, if it is not then adjust plank.
Answer: 1