Answer: "The SCU value introduced earlier defines the exterior dimensions of containers, which is important to note because it allows the number of SCU a ship is rated for to actually correlate with the SCU value of all containers which can be placed inside that particular cargo bay." https://robertsspaceindustries.com/comm-link/engineering/14677-Cargo-Interaction A ship's SCU is the max amount of external size of the containers that it can hold! Not its max SCU of cargo that fits in those containers. Do these containers have super thick armor? Or what is using all the extra internal volume that a 1x32scu-sized container has over 32x1scu-sized containers? The image clearly shows that there is enough single scu internal volume for 4 extra scus. So the minimum these should hold are 36scus.