Building code regulators at the state level in Montana made history as the first to approve 3D-printed walls as an equal replacement for walls made with concrete masonry units (CMUs), or a standard cored concrete block.
The approval was granted to Tim Stark, a contractor based in Billings, Montana, after filing documents, specifications and testing reports developed by Apis Cor, the Florida-based construction technology company that holds the Guiness World Record for the largest (volume) 3D-printed building globally.
