My 6250 GVWR ultra-lite trailer had a delivered weight of 5326 with full LP tanks leaving 924 for cargo. I know I'm close to my cargo limit when packed for travel even with an empty refrigerator an...
I couldn't say good or bad, harm or no harm done by over loading the gvwr by a 1000# in such situation. However I have read on this forum and elsewhere, how trailers are built with a minimal amount of spring support in the suspension resulting in sagging and eventually broken springs when loaded to the gvwr limit. I personally would have some concern about making a habit of having a trailer overloaded that much and sitting for long periods. :@