Custom Products with Summary Table

Hi Guys,
I’ve a problem to solve and I don’t know how to proceed.

A product can have different sizes ( dimensions ).
Each size can have different properties.
For each type product the Admin must determine the mandatory properties.
When the admin insert a new product must fill out the mandatory properties for each size. They should also insert other properties not mandatory.
At front end the mandatory properties must become filters.
In the product page the user must see a summary table of these properties for each size.

Example:
The products is a round table.
I can determine as mandatory properties: radius and table leg size.
I can also determine other properties (not mandatory): height, width, weight and border size.
When I insert a new round table I must:
1. check if I want other properties (height, width, weight and border size) in addition to the mandatory properties. Suppose that I want also border size.
2. define the different sizes, so i.e.: small, medium and large.
3. For each of these sizes I must fill out the properties defined to he point 1: radius, table leg size and border size.

In the product page ( front end ) I must see a summary table like this:
Radius | 100 | 200 | 350
Table Leg Size | 65 | 75 | 75
Border Radius | 10 | 15 | 18

In the type product page ( front end ) I must have the filters “radius” and “table leg size”.

So I hope to have been clear.
Can anyone help me?

Thank you.
Marco.