Woocommerce Product Layoutsporto_admin
Porto theme provides 9 single product layouts.
You can select product layout options for any single product.
Please check demo site to see each product layouts.
Custom Product Layout Builder
Porto 5.1 supports Custom Product Layout Builder which allows to build single product page layout using elements.
To enable Custom Product Layout Builder, you need to select “Custom” in Theme Options -> Woocommerce -> Single Product -> Product Layout.
You can build product layout by navigating Product Layouts -> Add New.
Note: You might need to enable product_layout post type in visual composer role manager.
You can now create new product layout using Visual Composer Backend / Frontend editor.
After creating product layout, you need to select it in Theme Options -> Woocommerce -> Single Product -> Custom Product Layout.