A trucking company listed osb sheets for 3 dollars a piece. I just picked up 34 for 100 bucks. The guy also threw in 3 sheets of paneling and a 2x6 board. Saved me over 150 dollars.

Framed up some walls. Planning on putting them up next Saturday.

Used some 3/8 lag bolts to mount the floor to the trailer. It took some fanagaling to get the floor square but it's all good now! Walls coming soon!

Got the subfloor on! (While being attacked by mosquitos)