I was looking at building a Cart/cargo for attaching to the back of my bike. Are you guys aware of any DIY kits or manufacturers that can build it to my specifications. I did look at some on the market, but they all seemed to be limited and are of less dimensions. I was looking for building something about 1.5*1*1(Length width and height). Thanks for any suggestions!
It looks like this Wicycle kit may fit your needs. You buy the dimensional material (metal bars in this case) to whatever size you need locally, and the specialized cargo hardware is included.