To setup the woocommerce product 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).
In the next page you will find three different options:
To configure product page layout click on Product link
In product page settings you have two different settings you can customize.
The first is simply called settings
In this page you can choose by a dropdown box in how many columns you want to display the related products. The available values are: none, 2, 3, 4 and 6 columns
The second option in product page configuration is called sidebar.
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.