Cupboard shelf

Here is my solution for the cupboard space expansion :) This cupboard is mainly used for cups, so I have pretty much space above the cups and no shelf in the middle. Each element is 150x190 mm and 175 mm high. The length of my cupboard is 570mm imside, so I have two corners (left and right) and middle section. It is solid and sturdy. Holds all the cups I stacked above.