What are the internal dimensions of your cargo boxes? Raul Bonifacio Updated August 01, 2017 21:47 Follow Please refer to the attached chart for complete internal and external measurements Box Int Dims.pdf 200 KB Download Related articles Are the Yakima cargo boxes waterproof? Is there a maximum speed I can drive with my rack installed? Cargo Box Load Capacity What should I do if I lock my keys inside my Yakima cargo box? My cargo box is dirty, how do I clean it? Comments 0 comments Article is closed for comments.