Create a calculator for calculating the flaps

Good day! Our company is engaged in the manufacture of various types of partitions, as well as folding, sliding, swinging doors and similar structures. We need to create a calculator that will calculate such products. In this test, we suggest you make one of its blocks. As a result, we have to get a part of the calculator, which will consider the cost of components necessary for the manufacture of aluminum partition/door frame.
To create requires knowledge of the following languages and environments:
The logic is written in javascript (Javascript jQuery version 1.9)
Appearance - html+css
If the task is successful, you will be offered long-term cooperation. We'll make a deal on the payment. You need to know:
• html
• css
• Javascript
• php
• mysql
Good luck.