I reviewed many posts and internet topics on installing new floors in a Brenderup Baron TC. Although most recommend welding in additional floor supports, few discuss the specifics on where exactly to weld in the additional supports. One recommendation is to add the supports under the seam in the new floor. If you have prior experience on where to place the additional floor supports, I would appreciate your thoughts so I can discuss them with my floor installer. I am putting in a marine plywood floor. Thanks.
With your plywood you are mimicking the original laminated floor, on any seam sounds like a good idea as the original would have been 1 piece, adding angle iron supports would be side to side, 24" on center or less, this is suggesting as there is very little framing in the original trailer
Risa
HappyTrailsTrailers.com
BalancedRideTrailers.com