At its completion in 2017, the Carbon 12 was the tallest mass timber structure in the United States with a height of 8 story. The building was originally developed for the 2014 US Tall Wood building Prize Competition, with six weeks left in until the deadline to submit the proposal. The proposed Carbon 12 building would be composed of Glulam post-and-beam frame and Cross-Laminated Timber (CLT) floors and ceilings. It would occupy a total of 42,000 sqft and features large open areas with visible mass timber elements, creating a uniquely warm space. In the end building was unfortunately not selected as a winner of the competition, but the Kaiser+Path team paid no mind to the result and decided to build the project regardless.