Just following up here. I ended up using a list of single-line text for dimensions with each dimension on a new line and it worked out pretty well:
You should also be able to do this by forking the direct answer card. Then specify the field this applies to and the format you want the answer to show in. You could follow this post on configuring price as a direct answer for the process of checking the API call for how to reference the field names and add the formatter.