We're looking into getting a cover for our trailer and wanted to now the external dimensions of our 1975 Trillium
Here are the dimension in case this information is useful to you, too:
80 inches (the bumper in the back is 66 inches wide)
approx.88 inches (from road to top vent)
Length of the "box":
125 inches from red tail lights
to the very front of the fiberglass box.
Length to the tip of the trailer hitch:
Wheel well diameter:
28 1/4 inches diameter.
Wheel well height:
I'm new to Trillium
ownership and have been maintaining a blog and Youtube channel as I learn things about my trailer. If this is of interest, check out my blog at
or Youtube channel at