Hello,

We are glad to know that you considered using WoodMart for your web-site. I hope you will be happy with it.

There are no special requirements for product images sizes in our theme. It depends on the design and layout of your website. As for our demo, here are sizes from WooCommerce -> Settings -> Products -> Display

Catalog images – 430×490
Single product image – 700×800
Product thumbnails – 200×230

Kind Regards
Xtemos