I would like to put a new floor in a tag-a-long trailer. I would like it to be light but strong and I plan on using Douglas fir 1 1/2" by 1 1/2" as my floor joists and to be spaced apart 12" with a 5/8" ply on top.
The trailer is 13' long and it is 7 1/2' wide. the largest span would be 2'. In total the weight would be 2000 lbs. Yes, there is a steel frame and no, the wood I would be putting in will not be exposed like the original.
What are your thoughts on this?