Do pallet racks require seismic calculations or stamped engineering drawings?
Quick Answer
Yes, most building departments require pallet rack installations to be designed for local seismic forces and submitted with engineer-stamped drawings when you pull a permit. Warehouse Cubed provides the necessary load calculations, seismic analysis, and sealed plans so your rack system meets IBC and ANSI/RMI MH16.1 and passes inspection.
Detailed Answer
Under the International Building Code (IBC) and ANSI/RMI MH16.1, pallet racking systems taller than roughly 8–12 ft or supporting more than 500 lb per shelf are classified as structural storage. That means the local authority having jurisdiction will ask for a building permit, full load calculations, and construction documents stamped by a professional engineer licensed in that state. The calculations must prove beam, column, and anchor capacities, and show that the rack will remain stable under site-specific seismic accelerations derived from ASCE 7 (Ss, Sds) as well as wind or snow loads.
Warehouse Cubed’s warehouse consulting services make the process painless. Our team measures every bay, gathers product weights, and pulls your site coordinates to run seismic analysis in RISA and AutoCAD. We then produce engineer-sealed drawings (often called LARCs) that include base-plate sizes, anchorage patterns, and pallet load charts so you can secure a permit the first time.
During installation we integrate protective guarding, label load capacities, and (when requested) can follow up with optional annual warehouse safety audits for ongoing compliance. Our warehouse layout design expertise ensures the rack footprint aligns with lift-truck aisles, pick zones, and future distribution center optimization goals.
By combining rack design, material handling systems integration, and warehouse optimization in one package, we protect your people, product, and budget—preventing costly red-tag shutdowns or insurance issues while maximizing storage density and throughput.