The product description on the website mentions that the shelf weight capacity is 25 pounds. The instructions say that it is actually only 15 pounds. I don't know if I would trust it with even 10 pounds. This is by far the worst quality bookcase I have ever purchased, even compared to ones half the price. It is rickety and uneven. When I hammered down the nails for the back siding large chunks of the material crumbled off. It will probably work to hold up a few paperbacks, but that will be all I trust to it. 

Additionally, the finish is just atrocious: applied completely unevenly and only in the bare number of spots to "hide" the unfinished sections from view. 

Get literally any other bookcase.