New vs. used rack
Used selective rack typically runs 30–50% less than new, and for standard pallet loads it performs identically. New rack makes sense when you need a specific configuration, a manufacturer warranty, or you're outfitting a brand-new facility. Most warehouses don't need new — they need the right used rack, sourced correctly and inspected before it goes up.
Rack type
Selective pallet rack (the standard, most common system) is the cheapest per position. Cantilever rack (for long, awkward loads) and drive-in/push-back systems (for high-density storage) cost more per position but solve problems selective rack can't.
Site conditions
Existing slab condition, ceiling height, sprinkler clearance requirements, and whether you're installing in a live warehouse versus an empty one all move labor cost. A live-warehouse install with forklifts running around your crew costs more than an empty-building install, every time.
Scope of service
A "just deliver the rack" quote and a "measure, source, deliver, and install" quote aren't the same job even if the steel is identical. Turnkey costs more upfront and almost always costs less overall — no gaps between vendors, no finger-pointing if something doesn't fit.