I'm thinking of building a small cart to tow behind a bicycle. The dimensions will be 2m long, 1.3m wide (oval though), and 1.6m high from floor to ceiling. Depending on the choice of materials, the weight will be 100-400 kg.
I'm wondering where I can find suitable wheels for this and axles. And whether I should try to find one long axle or if I should separate them. Does anyone have tips on where I can buy this? I might consider adjusting the width of the cart somewhat. Preferably spoked, but others are also fine.
I will build the chassis in wood (the picture below shows in steel) because I do not have access to welding and to make it easier. For example, Bauhaus sells pressure-treated posts 95x95mm. One of these could form the frame.
The pictures below are from three different cart projects I found. However, they are old projects and foreign, so it would be difficult to ask them for tips on where to find things in Sweden.
I am also curious about where to buy that type of wheel that is not mounted in a fork but hangs on an axle. It seems to be called "lapp wheel" in English. Did you (BengtH) find any good place to buy them?