The Schwintek's slide by CR moves on rollers. Very few; less one thenwould beminimailly needed. Fixed Rollers arefastenedto outside edge of trailer wall opening & Rollers on slideroom are set-back from inside edge. I've had to re-aline inside edge Roller(s): someone at Factory left us a Black "Paint Stick" under slideroom. Besides major mess & dents in floor covering, pulled/tore a Roller(s) loose & out of alinement (Parrallel / Perpendicular.) A real Bitch, a quarter turn at a time & no room for two hands(fingers.).
Black Fabric covering ChipBoard SlideRoom bottom when torn orwrinkledblocks / stops slide moving correctlly on Rollers.
Sunset Trail SF32RL