Thanks so much - that's really helpful!!

:: The weight of your trailer can be figured out by looking
:: at the VIN sticker located on the frame of your trailer.
:: Locate the GVWR (gross vehicle weight rating) on the
:: sticker. The GVWR is the empty weight of the trailer
:: plus the capacity that the trailer is rated for (also
:: known as the MAX GVCC ).
::
:: I have a single axle trailer, as per the Vin sticker the
:: Gross Vehicle Weight Rating GVWR is 3500 lbs. The
:: Maximum load carrying capacity MAX GVCC is 2,800 lbs.
::
:: Therefore, doing simple math, you can figure out what
:: the empty weight of the trailer is by taking the GVWR –
:: MAX GVCC = empty weight of the trailer. For my trailer ,
:: the GVWR is 3500 bs. minus the MAX GVCC of 2800 lbs
:: equals 700 lbs empty weight.