Can material be placed at the top of the shelf?
Yes, it should be based on the actual amount of load on your shelf to put the material, not more than the amount of load on it, I am professional shelf, what do not understand, you can ask me.
Yes. I do shelf, what do not understand, you can ask me
Of course, you can pull, the general factory does not put the reason is that the above board in order to dust only, but still can put, ha ha, do not worry