How to Make a Flat Bed Trailer! Part 1

Hey guys, I am making a flat bed trailer from an old boat trailer. This is going to be a 2 videos, so that it is not too long of one video. I am not going to list all the tools for this, because it would be too long of a list but I will list some things.
Trailer Length: 16 ft. total
Trailer Width: 89 in. tire to tire
Lumber used:
2x10x10
3 1x2x8
3x4 in treated ply wood.
Trailer Lights www.harborfrei...
Trailer Chain www.harborfrei...