@ia_camper is spot on. Plus they may void the manufacturer warranty of your RV. Instead of supports, you can extend the life of your slideouts with:
- Regular Maintenance: Ensure that your slide-out mechanism is well-maintained. Lubricate the moving parts, check the seals, and keep the slide-out area clean to prevent issues.
- Proper Leveling: Always level your RV properly before extending the slide-outs. This ensures that the weight is distributed evenly and reduces stress on the slide mechanisms.
- Slide-Out Awnings: Consider installing slide-out awnings to protect the top of your slide-outs from debris and water, which can add unnecessary weight and cause issues.
- Avoid Overloading: Be mindful of how much weight you place inside the slide-out area. Overloading can strain the mechanisms and lead to problems over time.