Community Alumni
Oct 22, 2016I've had several units with large slides and by design they've had a slight downward slope while extended. I'm assuming that is what you mean by sag. Mine typically are extended 5-6 months at a time throughout the summer months.
I would never use any form of slide brace or support. My last two units even stated such in their manuals.
The only thing I ever do is exercise the slide mechanisms and work the seals a couple times throughout that time frame by moving the slides back in & out. Having said that, it is likely not necessary because many of our friends leave their slides extended 6 months at a time without ever moving them and they have never had issues.
Do you have any photos of your slide extended?