can i have combinations within combinations?

[kokod]

Hi,

 

I am wanting to sell lampshades of different styles and sizes.. for example, if the customer selects one of 10 designs, they can choose if they want a drum shade or coolie shade or square shade. They would then choose a size whcih is specific to the first choice; drum, coolie or cube. Each size would have a different price.

Is this possible or would i have to have separate drum, coolie and cube shades for each design with the variations within that.

I've attached a flow chart showing the options they woudl make

 

Thanks