I spent some time using some old OSB sheathing to build 3 frame queen rearing boxes. These are Langstroth deep frame boxes which should be good for rearing queens next year. However, OSB board is extremely difficult to use and not worth the time. These boxes are so fragile and vulnerable to water that they are almost useless. I will need to spend a huge amount of time and material coating the OSB with paint to protect the material.
