Got my floor in!
Iím 6í1Ē so couldnít go with lots of insulation on the floor. I welded 127 holes, painted with rust preventative. Then put 1/2Ē rigid insulation down, and covered with 3/4-7/8Ē oak. Itís rustic, but this is my moving van and home, so will need ruggedness first. Old oak= rugged, and tho not an insulator per se,, itíll retain temps, and Iím not going north...