Quote Originally Posted by Willie B View Post
Probably be best to weld enough to structurally join containers, then caulk with a good polyester caulk (Lexel). I agree, if you feel need to use a steel bridge to make weathertightness more permanent, 1/8" is adequate.
These containers won't fit together tightly enough to weld the gap. A strip of 1/8" steel might bridge the gap. You can weld where it touches, then hammer the gaps for a close fit.
If there is a gap, through round bar in it but then it probably needs 2 passes or maybe a weave. I thought Conex boxes are made to get real close together?