For most sites, our CMS of choice is Statamic. There are a lot of reasons why we love it, but the biggest one is that it makes it really easy for us to create a super custom and easy-to-use backend for our clients. When a client uses the backend to manage their site’s content, everything in the backend relates directly to something on the frontend. There are no useless buttons, links, or sections, and everything is labeled in relation to your specific content. We do have experience with other platforms such as Wordpress and Shopify, and we’re willing to work with whichever best suits the needs of the project.
FYI
Cast Iron Design is now The Office of Ordinary Things. We relocated from Boulder to San Francisco, but otherwise we’re pretty much the same people doing the same things, just a bit more hardcore.