To setup the woocommerce shop page layout click on Appearance->Customize in your wordpress dashboard.
When you are in Customize page click on Tiam: Woocommerce link (this link will be visible only if you have an active Woocommerce plugin active on your website).
After that click on shop link to open shop configurations
Here you can find 2 options: settings and sidebar.
In the layout dropbox you can define the general layout of your shop page. Here you have 2 different options: list and grid.
The other options in this page are related of the number of columns, number of product per page and pagination method.
When you go into this configuration panel you find a configuration for sidebar that is very similar as the others viewed in blog options.
You can set the sidebar in product page as default (blog settings are the default settings) or custom.
In custom mode you can choose the sidebar, and it’s relative options like in blog settings page.
When you’ve done with your settings just click on Publish button.