I will talk about the classic Tilliums. The more recent ones are kinda confusing.
I will refer to the Serial Numbers on a Trillium thread often in this post:
Serial numbers on a Trillium
Trillium made three sizes of trailers. They started out making a 13'. It was much like the Boler
. The front and back windows
did not open, and the side windows
had only two panes. Also, they used rivets, from the inside to attach some furniture. Here is an example:
AB (Canada) - Trillium 1300 - 1971 - $2500
Then, in the early 70's, they changed to opening windows
on all sides, and made the side windows a three pane design that was quite a bit larger. They stayed with this configuration, with only minor changes, till they stopped production. The earliest example of this change is serial number 234:
On (Canada) - 1972 - Trillium 1300 - $5400
There is a rather large gap in the serial number list, between the last old style, and the first new style, so it is kind of hard to say how many of the old style were made. They are quite rare though.
Around 1976 Trillium introduced the 4500, (4.5m). It is about 18" longer then the 1300, (13'), but it has the same floor plan. Just a wider bed, closet, kitchen and gaucho. The list of differences can be found in this post:
What I like about a Trillium 4500 vs. a 1300
difference between the two is not large, probably around 200 lbs. Anything that can tow a 1300 should be fine for a 4500. The frontal surface area is identical for both. Brakes
are recommended on either trailer.
The third size was the 5500, or 18' long Trillium. It was also about 12" wider then the 1300 and 4500. They put a particle board interior where the 1300 and 4500 used fibreglass for the furniture. There were two major versions of the 5500. Both had a very large, (7' long) dinette / bed in the back, a mid bathroom on the road side, and a kitchen on the curb side. The difference in the two styles was the front of the trailer. In the most common version, there is another dinette / bed, (only 6' long). But there was also a front gaucho version.
There are thee major versions of the floor plan, on both the 1300 and the 4500. The most common is a front gaucho. That is, a couch that turns into a bunk bed. Really good for a couple with up to two kids. There are two versions of this. The pre 1979 version, which has the seat of the gaucho that extends all the way across the front:
Serial numbers on a Trillium
The 1979, and later version that has a gap in the gaucho that, on the front dinette version, is where the people sitting at the front dinette would put their feet:
On (Canada) - 1979 - Trillium 4500 - $5800
There was also a front bathroom version. This included a toilet on the kitchen side, and a sink on the door side. No shower. There was an innovative love seat / desk that installed between the toilet and the sink. There was a bi-fold door that when open, enclosed the toilet. The fold up love seat could then be lowered. Only two people could sleep in this version. An example:
After 1979, they made a front dinette version. From that year on, the fibreglass that made up the seat of the front couch was made with a gap in the middle. On a front dinette trailer, a piece of fibreglass was installed from the bottom of the window to the top of the seat. The table was attached to this piece. That way, no holes in the shell were necessary. The table could be lowered to make a single bed. This reduced the number of people that could sleep in the trailer to three. I think of this as the perfect couples trailer. Leave the rear dinette set up as a nearly queen sized bed and a two person dinette up front. An example:
Nice Looking Trillium on L.A. C/L
There is an other variation of the 4500. The kitchen in the 1977 and previous models had a smaller kitchen cupboard that only accommodated an RM211 fridge
. In 1978 they made a larger kitchen cupboard that allowed the use of a larger RM36, (RM360) fridge
Trillium 4500 Kitchen Variations