The shelving was as described.  It was a perfect fit for the closet in my sewing room.  I'm in the process of stocking it with supplies - everything from stacks of material, templates and such to huge boxes of old photos on the top shelf - loaded for bear.  I purchased to racks.  They are sturdy and easy to move.  A handyman carried them upstairs and assembled them for me - was done in a jiffy, so apparently no problems in doing so.
My reason for buying these particular shelves was that the ones in the hardware stores were only 12" deep whereas these were 18" - a much more useable size for my needs.  The price was also better than those in the store.
I heartily recommend these.