DO NOT BUY THIS PALLET RACKING!!! We purchased $14,000 of pallet racking and the quality is outright dangerous. Alibaba protection is absolutely worthless! They said well we didn't agree on the quality of the welds beforehand so they can't do anything! What a joke, alibaba protection is just a marketing ploy thats a huge scam. We're having to dispute it with our credit card company. The welds are the problem! take a look at the photos attached of the welds! this is meant to hold 2000kg per level! shocking welds like this would never hold. This company will end up killing someone, they should be shut down.