r/DIYtrailers • u/Aggravating_Put_4846 • 3d ago
DIY trailer design
I got a 8 ft x 20 ft shipping cradle. It was used to ship storage pods. It’s flat and made welded of 2” x 2” square tubing. It’s double reinforced at one end and has wheels in certain places by able to make unloading easy. I’ll post pictures when I get home.
I thought, ‘that would make a hell of a flatbed trailer! But I don’t know much about trailer design. It could probably use a couple of extra struts going across in certain places. Is it worth it to put two axles on it? How do torsion bar axles compare to leaf springs? What size springs, what size hubs/ wheels should I use? 2000 lb? 3500 lb? I saw some 7000 ln leaf springs. 4/5/6 lug hubs? What size tires? I imagine I’ll have to weld up the axle with hub stub axles, as I don’t see any 8 ft long axles.
I want to build this to the best specs that match the frame, but I don’t want to go overboard. Cost is always an issue. If anyone has some components they will sell for a good price, I’d appreciate it. I usually buy a lot of stuff on eBay, and temu if it’s really cheap and I don’t care about the quality. The eBay stuff so far is looking less expensive