Due to our Seismic Zone 4 designation, per the California Building Code, all storage rack over 8 feet in height (or less depending on the municipality) must be engineering and permitted.
As part of our preliminary design, we consult a Seismic Engineer who is a type of engineer that searches/researches ways to make structures, such as pallet racking, conveyors and other warehouse structures resistant to earthquake damage. Seismic engineers have specific guidelines that they follow when setting up material handling equipment into a commercial warehouse facility. They perform a preliminary engineering analysis to determine the design feasibility and specific components required.
When we prepare permit drawings we include the final structural calculations and component detail drawings prepared by the seismic engineer.