Did this in a 98 Pace Arrow. Had to remove the cabinet front to get out the washer/dryer. Glued wood frames on both sides inside the cabinet and built sliding shelves with low sides to fit inside. Learned that glue doesn't always hold the framing in place, ended up with a warped shelf (held the heavy pots and pans).
Also part of project: capping off water supply (no valves) and drain lines, and closing off dryer vent to keep out cold air.
Dave RVM#66 and Carol
1998 Pace Arrow Vision
Seeing the USA - 200 miles at a time