If more than one person is carrying, all should know in advance what procedure will be used and what route will be taken. Material to be stacked should be started on an even, level base. When lowering the object, bend knees and keep back straight. Be careful of fingers and toes. Allow room for them.
Slide loads into tight places.
Common sense must be used to determine how high objects can be stacked safely. The type of materials, the construction and the strength of the containers, the floor load limit and the overhead conditions are all factors that need to be considered. Do not stack materials closer than 18 inches from fire sprinkler heads. Do not stack anything near unguarded electric light bulbs. Simple things like storing objects at waist height will prevent back injuries.