美国采购需求：禽舍、钢结构仓库、集装箱房屋、洗手池、移动厕所

I'm reaching out to inquire about the specifications for your products. Specifically, I'm interested in knowing the largest size available. It's important for us to understand the range of sizes you offer, as this will have a significant impact on our purchasing decisions. Could you please provide detailed information regarding the dimensions and any other relevant specifications associated with the largest size you have? Additionally, if there are variations or options available in that size, I would appreciate your insights. This info will be really helpful as we plan our upcoming orders. Thanks!