They just lay on the floor and you roll the slideout on top of them. You put them down to bring it in and you take them up when you put the room out. Have you tried Googling to get all the info?
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7