This product is impossible to put on wall.  The shelves slide out while you are trying to get on screws.  We have been working at it for three hours and due to the shelves sliding out one broke.  It is make of very cheap board and cannot take anything heavy.  We r trying to figure a way to keep the shelves in place as you lift the unit on to the wall.  So far nothing has worked.  Not happy with this product.  Very cheap for the cost. Do not recommend buying this product.