Is your warehouse in a highly seismic area? Unless notified, most manufacturers provide initial quotations that do not comply to seismic spec. In larger applications, it is recommended to have a pre-liminary analysis performed by a registered professional engineer (PE) with authority to provide Stamped and Sealed drawings for that State. This is because requirements can vary widely from one area AND one application to another, street level address information, plan views, elevation views, and weights per level are needed. By doing this early in the proposal generation stage, you assure a level playing field as you evaluate your supplier options.