Virtue Theme page setup

Hi all would like to ask a quick question, am starting up a new clothing business and i would like to have pages set out in grid format, so when you hit the collections page it sets outs say 3 thumbnails across which then you can press and it takes you to that style. i have tried the “div” setout but want them to all be equal thumbnail size, was just curious if there was a better way of doing this.

Thanks