How do I stack "Boltless" Shelving? I have shelving units that are "Boltless" I feel they're called, anyway...

I have shelving units that are "Boltless" I feel they're called, anyway they have legs in the region of 3 feet tall beside areas where the shelving braces can slide in next to built in bolts...I need to doubble the requisition, but I can't find a way to do it...Do you know how?

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Answers:    Bolt-less shelves with bolts? Hmm.

Double size contained by height:
Usually there are adapters that slide around the legs approaching collars, allowing the legs to stack without sliding off one another.

Double contained by width:
Try staggering the shelving, (almost like a brick pattern) so that the middle set of legs is shared between both sides of the shelf.

Hope that help, you might add some better details...

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