I'm in the process of getting some supplies together for a 5' X 8' trailer build and would apprecaite any thoughts you have.
Yes, I know it's going to be cheaper to just go out and BUY a trailer, but I already have a 58" wide Dexter #3,500 axle, springs, hubs, 15" wheels, and tires, most of which was basically free. I already picked up some "flat top" fenders, and just have to pick up the steel, a 45deg-coupler, and a set of trailer lights.
The purpose of this post is to hear your thoughts on the choice of steel used to build this trailer. I'd like to build something like this pictured below, but without the ramp, and without the short steel "railing" around it. I'd rather have stake pockets with a classic 'wooden fence' around it. (removable)
I've scoured quite a few plans and came to the realization that most of these plans use angle-iron for the structure of the trailer, so the short railings are a part of the structure of the trailer and stiffen (truss) what would otherwise be a floppy mess.
My thought is to build the main frame of the trailer from 3" channel iron like this (except placed on placed on edge):
My reasoning for the use of channel is that (I think) it's more stiff, but I "aint no engineer" so would love your thoughts. This trailer doesn't need to be super heavy duty, (I already have an 18' car-hauler for the big stuff) like I said I'm just building it because we already have most of the stuff for it. (and a welder!) I figure 5'X8' is also a good size to tow behind a small/mid-size garden tractor for hauling things around the yard. I know channel is heavier than angle, but if I can get away without the upper structure, the finished trailer may actually be lighter.
Any thoughts you have are apprecaited.