Hi DPerkins,
Welcome to the Heartland Owners Forum. I've moved your thread into the Furniture area.
Someone posted about a similar sounding problem a few days ago, so you're not alone. If your trailer was purchased new, less than 12 months ago, you should put in a warranty claim, either through your dealer, or call Heartland Customer Service at 877-262-8032 / 574-262-8030. Have your VIN # ready.
I'm not aware of any repair kits, so if you're out of warranty, and it's bothersome enough, you might want to investigate residential furniture from a local store.