Unlike the process of creating a template for individual WooCommerce products, there is no need to create an Avada Layout when building a custom WooCommerce Shop page. With WooCommerce, the Shop page is a little bit different to the Cart and Checkout Pages, which by default, just have a simple shortode.
With the Shop page, the shop contents comes from a loop inserted into the assigned page. So, to create a custom shop page, you edit the assigned Shop page and design and build it as you would with the Cart and Checkout pages. There is just one additional step to stop the default loop showing up, and that is to go to the Page Options of the Shop page, head to the Content tab, and select No for the Show WooCommerce Shop Loop in the second option, as you can see in the screenshot below. That will remove the default shop layout, and now you can start designing and building your own Shop page using your preferred interface of the Avada Builder, and your choice of Woo and other Design Elements.
For the Shop page, the most obvious Elements to use are the Woo Sorting and Woo Product Grid Elements, as well as any other Design Elements you’d like to use. You can also create and design a Post Card for products, and then use the Post Cards Element to display the products.