Carnai's history begins in the mid 80's when Progress Tool and Die, Inc. started manufacturing parts for Calkins trailers. Then in 2000 Calkins got out of the Trailer business and thats when Progress Tool and Die, Inc. purchased the trailer company and started manufacturing Carnai Trailers. Carnai continues to manufacture trailers at the highest quality by building the parts internally in our own, (Progress Tool and Die, Inc.'s) metal stamping facility. This ensures the highest control and quality for the components used in a Carnai trailer.