Create a product grid using wordpress pages

Hi. I have an e-commerce site already set up with all the products.
The products have individual product pages. Upon clicking each product, the user will be directed to the products page. On that page there is a ‘add to cart’ button for registered users. I am using the woocommerce plugin.

My store can be viewed here

I want to make a products grid (catalogue page) but the plugin is using its own custom post type to display all the products. How can I redirect it to use my pages instead? I hope there is a solution for me.
Any suggestion/help is greatly appreciated!