Craig Chamberlain has an article over at the MHEDA Edge website that you need to read if you use pallet rack wire decking.
Here’s the money quote:
“Decking can, and often does, directly bear the total weight of the application’s load and transfers that load to the beams of the pallet rack. Regardless of the weight-bearing capacity of the rack’s beams, an improperly overrated deck can and will jeopardize the load-bearing capacity of the entire system and result in a failure.”